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Age of invertebratesInvertebrate In*ver"te*brate, a. (Zo["o]l.)
Destitute of a backbone; having no vertebr[ae]; of or
pertaining to the Invertebrata. -- n. One of the
Invertebrata.
Age of invertebrates. See Age, and Silurian. Anticlinal vertebraAnticlinal An`ti*cli"nal (-kl[imac]"nal), a. [Pref. anti- +
Gr. kli`nein to incline.]
Inclining or dipping in opposite directions. See Synclinal.
Anticlinal line, Anticlinal axis (Geol.), a line from
which strata dip in opposite directions, as from the ridge
of a roof.
Anticlinal vertebra (Anat.), one of the dorsal vertebr[ae],
which in many animals has an upright spine toward which
the spines of the neighboring vertebr[ae] are inclined. IntervertebralIntervertebral In`ter*ver"te*bral, a. (Anat.)
Between vertebr[ae]. -- In`ter*ver"te*bral*ly, adv. IntervertebrallyIntervertebral In`ter*ver"te*bral, a. (Anat.)
Between vertebr[ae]. -- In`ter*ver"te*bral*ly, adv. InvertebralInvertebral In*ver"te*bral, a. (Zo["o]l.)
Same as Invertebrate. Invertebrata
Invertebrata In*ver`te*bra"ta, n. pl. [NL., fr. L. in- not +
vertebratus vertebrate.] (Zo["o]l.)
A comprehensive division of the animal kingdom, including all
except the Vertebrata.
InvertebrateInvertebrate In*ver"te*brate, a. (Zo["o]l.)
Destitute of a backbone; having no vertebr[ae]; of or
pertaining to the Invertebrata. -- n. One of the
Invertebrata.
Age of invertebrates. See Age, and Silurian. Invertebrated
Invertebrated In*ver"te*bra`ted, a.
Having no backbone; invertebrate.
Perivertebral
Perivertebral Per`i*ver"te*bral, a. (Anat.)
Surrounding the vertebr[ae].
Prevertebral
Prevertebral Pre*ver"te*bral, a. (Anat.)
Situated immediately in front, or on the ventral side, of the
vertebral column; prespinal.
ProtovertebraProtovertebra Pro`to*ver"te*bra, n.; pl. Protovertebr[ae] .
[Proto- + vertebra.] (Anat.)
One of the primitive masses, or segments, into which the
mesoblast of the vertebrate embryo breaks up on either side
of the anterior part of the notochord; a mesoblastic, or
protovertebral, somite. See Illust. of Ectoderm.
Note: The protovertebr[ae] were long regarded as rudiments of
the permanent vertebr[ae], but they are now known to
give rise to the dorsal muscles and other structures as
well as the vertebral column. See Myotome. ProtovertebraeProtovertebra Pro`to*ver"te*bra, n.; pl. Protovertebr[ae] .
[Proto- + vertebra.] (Anat.)
One of the primitive masses, or segments, into which the
mesoblast of the vertebrate embryo breaks up on either side
of the anterior part of the notochord; a mesoblastic, or
protovertebral, somite. See Illust. of Ectoderm.
Note: The protovertebr[ae] were long regarded as rudiments of
the permanent vertebr[ae], but they are now known to
give rise to the dorsal muscles and other structures as
well as the vertebral column. See Myotome. Protovertebral
Protovertebral Pro`to*ver"te*bral, a. (Anat.)
Of or pertaining to the protovertebr[ae].
Sacrovertebral
Sacrovertebral Sa`cro*ver"te*bral, a. (Anat.)
Of or pertaining to the sacrum and that part of the vertebral
column immediately anterior to it; as, the sacrovertebral
angle.
Spinous process of a vertebraSpinous Spi"nous, a.
1. Spinose; thorny.
2. Having the form of a spine or thorn; spinelike.
Spinous process of a vertebra (Anat.), the dorsal process
of the neural arch of a vertebra; a neurapophysis. Subvertebral
Subvertebral Sub*ver"te*bral, a. (Anat.)
Situated beneath, or on the ventral side of, the vertebral
column; situated beneath, or inside of, the endoskeleton;
hypaxial; hyposkeletal.
VertebraVertebra Ver"te*bra, n.; pl. Vertebr[ae]. [L. vertebra, fr.
vertere to turn, change. See Verse.]
1. (Anat.) One of the serial segments of the spinal column.
Note: In many fishes the vertebr[ae] are simple cartilaginous
disks or short cylinders, but in the higher vertebrates
they are composed of many parts, and the vertebr[ae] in
different portions of the same column vary very
greatly. A well-developed vertebra usually consists of
a more or less cylindrical and solid body, or centrum,
which is surmounted dorsally by an arch, leaving an
opening which forms a part of the canal containing the
spinal cord. From this dorsal, or neural, arch spring
various processes, or apophyses, which have received
special names: a dorsal, or neural, spine, spinous
process, or neurapophysis, on the middle of the arch;
two anterior and two posterior articular processes, or
zygapophyses; and one or two transverse processes on
each side. In those vertebr[ae] which bear
well-developed ribs, a tubercle near the end of the rib
articulates at a tubercular facet on the transverse
process (diapophysis), while the end, or head, of the
rib articulates at a more ventral capitular facet which
is sometimes developed into a second, or ventral,
transverse process (parapophysis). In vertebrates with
well-developed hind limbs, the spinal column is divided
into five regions in each of which the vertebr[ae] are
specially designated: those vertebr[ae] in front of, or
anterior to, the first vertebra which bears ribs
connected with the sternum are cervical; all those
which bear ribs and are back of the cervicals are
dorsal; the one or more directly supporting the pelvis
are sacral and form the sacrum; those between the
sacral and dorsal are lumbar; and all those back of the
sacral are caudal, or coccygeal. In man there are seven
cervical vertebr[ae], twelve dorsal, five lumbar, five
sacral, and usually four, but sometimes five and rarely
three, coccygeal.
2. (Zo["o]l.) One of the central ossicles in each joint of
the arms of an ophiuran. vertebra dentataAxis Ax"is, n.; pl. Axes. [L. axis axis, axle. See Axle.]
A straight line, real or imaginary, passing through a body,
on which it revolves, or may be supposed to revolve; a line
passing through a body or system around which the parts are
symmetrically arranged.
2. (Math.) A straight line with respect to which the
different parts of a magnitude are symmetrically arranged;
as, the axis of a cylinder, i. e., the axis of a cone,
that is, the straight line joining the vertex and the
center of the base; the axis of a circle, any straight
line passing through the center.
3. (Bot.) The stem; the central part, or longitudinal
support, on which organs or parts are arranged; the
central line of any body. --Gray.
4. (Anat.)
(a) The second vertebra of the neck, or vertebra
dentata.
(b) Also used of the body only of the vertebra, which is
prolonged anteriorly within the foramen of the first
vertebra or atlas, so as to form the odontoid process
or peg which serves as a pivot for the atlas and head
to turn upon.
5. (Crystallog.) One of several imaginary lines, assumed in
describing the position of the planes by which a crystal
is bounded.
6. (Fine Arts) The primary or secondary central line of any
design.
Anticlinal axis (Geol.), a line or ridge from which the
strata slope downward on the two opposite sides.
Synclinal axis, a line from which the strata slope upward
in opposite directions, so as to form a valley.
Axis cylinder (Anat.), the neuraxis or essential, central
substance of a nerve fiber; -- called also axis band,
axial fiber, and cylinder axis.
Axis in peritrochio, the wheel and axle, one of the
mechanical powers.
Axis of a curve (Geom.), a straight line which bisects a
system of parallel chords of a curve; called a principal
axis, when cutting them at right angles, in which case it
divides the curve into two symmetrical portions, as in the
parabola, which has one such axis, the ellipse, which has
two, or the circle, which has an infinite number. The two
axes of the ellipse are the major axis and the minor
axis, and the two axes of the hyperbola are the
transverse axis and the conjugate axis.
Axis of a lens, the straight line passing through its
center and perpendicular to its surfaces.
Axis of a telescope or microscope, the straight line with
which coincide the axes of the several lenses which
compose it.
Axes of co["o]rdinates in a plane, two straight lines
intersecting each other, to which points are referred for
the purpose of determining their relative position: they
are either rectangular or oblique.
Axes of co["o]rdinates in space, the three straight lines
in which the co["o]rdinate planes intersect each other.
Axis of a balance, that line about which it turns.
Axis of oscillation, of a pendulum, a right line passing
through the center about which it vibrates, and
perpendicular to the plane of vibration.
Axis of polarization, the central line around which the
prismatic rings or curves are arranged. --Brewster.
Axis of revolution (Descriptive Geom.), a straight line
about which some line or plane is revolved, so that the
several points of the line or plane shall describe circles
with their centers in the fixed line, and their planes
perpendicular to it, the line describing a surface of
revolution, and the plane a solid of revolution.
Axis of symmetry (Geom.), any line in a plane figure which
divides the figure into two such parts that one part, when
folded over along the axis, shall coincide with the other
part.
Axis of the equator, ecliptic, horizon (or other circle
considered with reference to the sphere on which it lies),
the diameter of the sphere which is perpendicular to the
plane of the circle. --Hutton.
Axis of the Ionic capital (Arch.), a line passing
perpendicularly through the middle of the eye of the
volute.
Neutral axis (Mech.), the line of demarcation between the
horizontal elastic forces of tension and compression,
exerted by the fibers in any cross section of a girder.
Optic axis of a crystal, the direction in which a ray of
transmitted light suffers no double refraction. All
crystals, not of the isometric system, are either uniaxial
or biaxial.
Optic axis, Visual axis (Opt.), the straight line passing
through the center of the pupil, and perpendicular to the
surface of the eye.
Radical axis of two circles (Geom.), the straight line
perpendicular to the line joining their centers and such
that the tangents from any point of it to the two circles
shall be equal to each other.
Spiral axis (Arch.), the axis of a twisted column drawn
spirally in order to trace the circumvolutions without.
Axis of abscissas and Axis of ordinates. See Abscissa. VertebraeVertebra Ver"te*bra, n.; pl. Vertebr[ae]. [L. vertebra, fr.
vertere to turn, change. See Verse.]
1. (Anat.) One of the serial segments of the spinal column.
Note: In many fishes the vertebr[ae] are simple cartilaginous
disks or short cylinders, but in the higher vertebrates
they are composed of many parts, and the vertebr[ae] in
different portions of the same column vary very
greatly. A well-developed vertebra usually consists of
a more or less cylindrical and solid body, or centrum,
which is surmounted dorsally by an arch, leaving an
opening which forms a part of the canal containing the
spinal cord. From this dorsal, or neural, arch spring
various processes, or apophyses, which have received
special names: a dorsal, or neural, spine, spinous
process, or neurapophysis, on the middle of the arch;
two anterior and two posterior articular processes, or
zygapophyses; and one or two transverse processes on
each side. In those vertebr[ae] which bear
well-developed ribs, a tubercle near the end of the rib
articulates at a tubercular facet on the transverse
process (diapophysis), while the end, or head, of the
rib articulates at a more ventral capitular facet which
is sometimes developed into a second, or ventral,
transverse process (parapophysis). In vertebrates with
well-developed hind limbs, the spinal column is divided
into five regions in each of which the vertebr[ae] are
specially designated: those vertebr[ae] in front of, or
anterior to, the first vertebra which bears ribs
connected with the sternum are cervical; all those
which bear ribs and are back of the cervicals are
dorsal; the one or more directly supporting the pelvis
are sacral and form the sacrum; those between the
sacral and dorsal are lumbar; and all those back of the
sacral are caudal, or coccygeal. In man there are seven
cervical vertebr[ae], twelve dorsal, five lumbar, five
sacral, and usually four, but sometimes five and rarely
three, coccygeal.
2. (Zo["o]l.) One of the central ossicles in each joint of
the arms of an ophiuran. Vertebral
Vertebral Ver"te*bral, n. (Zo["o]l.)
A vertebrate. [R.]
Vertebrally
Vertebrally Ver"te*bral*ly, adv. (Anat.)
At or within a vertebra or vertebr[ae]; -- distinguished from
interverterbrally.
Vertebrarterial
Vertebrarterial Ver`te*brar*te"ri*al, a. (Anat.)
Of or pertaining to a vertebr[ae] and an artery; -- said of
the foramina in the transverse processes of cervical
vertebr[ae] and of the canal which they form for the
vertebral artery and vein.
Vertebrata
Vertebrata Ver`te*bra"ta, n. pl. [NL.] (Zo["o]l.)
One of the grand divisions of the animal kingdom, comprising
all animals that have a backbone composed of bony or
cartilaginous vertebr[ae], together with Amphioxus in which
the backbone is represented by a simple undivided notochord.
The Vertebrata always have a dorsal, or neural, cavity above
the notochord or backbone, and a ventral, or visceral, cavity
below it. The subdivisions or classes of Vertebrata are
Mammalia, Aves, Reptilia, Amphibia, Pisces, Marsipobranchia,
and Leptocardia.
Vertebrate
Vertebrate Ver"te*brate, n. (Zo["o]l.)
One of the Vertebrata.
Vertebrate
Vertebrate Ver"te*brate, Vertebrated Ver"te*bra`ted, a. [L.
vertebratus.]
1. (Anat.) Having a backbone, or vertebral column, containing
the spinal marrow, as man, quadrupeds, birds, amphibia,
and fishes.
2. (Bot.) Contracted at intervals, so as to resemble the
spine in animals. --Henslow.
3. (Zo["o]l.) Having movable joints resembling vertebr[ae];
-- said of the arms ophiurans.
4. (Zo["o]l.) Of or pertaining to the Vertebrata; -- used
only in the form vertebrate.
Vertebrated
Vertebrate Ver"te*brate, Vertebrated Ver"te*bra`ted, a. [L.
vertebratus.]
1. (Anat.) Having a backbone, or vertebral column, containing
the spinal marrow, as man, quadrupeds, birds, amphibia,
and fishes.
2. (Bot.) Contracted at intervals, so as to resemble the
spine in animals. --Henslow.
3. (Zo["o]l.) Having movable joints resembling vertebr[ae];
-- said of the arms ophiurans.
4. (Zo["o]l.) Of or pertaining to the Vertebrata; -- used
only in the form vertebrate.
Meaning of Tebra from wikipedia
-
Tebra is an
American company that
develops healthcare software. As of 2023, the
company supports more than 150,000
healthcare providers covering approximately...
- The
Tebra is a
river in the
South Kurzeme Muni****lity of Courland, Latvia. Its
source is
Podnieki Lake in the
Kalvene Parish of
western Latvia. Several...
-
Tebra Castle is a
castle located in
Pontevedra province, Galicia, Spain. The
Tebra Castle is
sited in the Tomiño valley. The
river Tebra,
tributary of...
- neću da
igram fudbal. —
Tebra, ćune da
grami balfud. ("Bro, I don't want to play football.")
Zemun zakon brate. —
Munze konza tebra. (literally: "Zemun is...
-
turns to lobe, a
pistol (pištolj)
turns to štoljpi, bro (brate)
turns to
tebra. In the past few
years it has
become widely used
between teenage immigrants...
- town in
western Latvia's
South Kurzeme Muni****lity in the
valley of the
Tebra River,
situated 50 km (31 mi)
northeast of Liepāja. The
territory of modern...
-
Slocene -
Stende - Strazdupīte [lv] - Suda - Sventāja - Svēte
Tartaks -
Tebra - Tumšupe [lv] Varkaļu kanāls [lv] -
Venta - Vēršupīte [lv]
Zilupe Lonely...
- Alea – "Waste Tomorrow" 5:18
Tebra – "Suton" 5:54 Lena
Kaufman – "Crazy Day (Thor
Krasnyi Morning Rain)" 4:04 CD2
Tebra – "Istok" 5:25 Rasi Z – "Zamin"...
-
flows and
volcanic cones such as the
shield volcanoes Ras el-Mohor and Ras
Tebra.
Exposed laccoliths are also
common in some
parts of the field, such as...
- myjoyonline.com. 28
August 2021.
Retrieved 22
January 2024. Ayibani,
Imoro Tebra (29 July 2019). "Ghana: Bono
Regional Coordinating Council Inaugurated in...
