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Accelerometer
Accelerometer Ac*cel`er*om"e*ter, n. [Accelerate + -meter.]
An apparatus for measuring the velocity imparted by
gunpowder.
Aerometric
Aerometric A`["e]r*o*met"ric, a.
Of or pertaining to a["e]rometry; as, a["e]rometric
investigations.
Airometer
Airometer Air*om"e*ter, n. [Air + -meter.]
A hollow cylinder to contain air. It is closed above and open
below, and has its open end plunged into water.
Aleurometer
Aleurometer Al`eu*rom"e*ter, n. [Gr. ? flour + -meter.]
An instrument for determining the expansive properties, or
quality, of gluten in flour. --Knight.
Amperometer
Amperemeter Am`p[`e]re"me`ter, Amperometer Am`pe*rom"e*ter,
n. [Amp[`e]re + meter.] (Physics)
An instrument for measuring the strength of an electrical
current in amp[`e]res.
Aneroid barometerBarometer Ba*rom"e*ter, n. [Gr. ? weight + -meter: cf. F.
barom[`e]tre.]
An instrument for determining the weight or pressure of the
atmosphere, and hence for judging of the probable changes of
weather, or for ascertaining the height of any ascent.
Note: The barometer was invented by Torricelli at Florence
about 1643. It is made in its simplest form by filling
a graduated glass tube about 34 inches long with
mercury and inverting it in a cup containing mercury.
The column of mercury in the tube descends until
balanced by the weight of the atmosphere, and its rise
or fall under varying conditions is a measure of the
change in the atmospheric pressure. At the sea level
its ordinary height is about 30 inches (760
millimeters). See Sympiesometer. --Nichol.
Aneroid barometer. See Aneroid barometer, under
Aneroid.
Marine barometer, a barometer with tube contracted at
bottom to prevent rapid oscillations of the mercury, and
suspended in gimbals from an arm or support on shipboard.
Mountain barometer, a portable mercurial barometer with
tripod support, and long scale, for measuring heights.
Siphon barometer, a barometer having a tube bent like a
hook with the longer leg closed at the top. The height of
the mercury in the longer leg shows the pressure of the
atmosphere.
Wheel barometer, a barometer with recurved tube, and a
float, from which a cord passes over a pulley and moves an
index. Astrometer
Astrometer As*trom"e*ter, n. [Astro- + meter.]
An instrument for comparing the relative amount of the light
of stars.
Astrometry
Astrometry As*trom"e*try, n. [Astro- + metry.]
The art of making measurements among the stars, or of
determining their relative magnitudes.
Baromacrometer
Baromacrometer Bar`o*ma*crom"e*ter, n. [Gr. ? weight + ? long
+ -meter.] (Med.)
An instrument for ascertaining the weight and length of a
newborn infant.
BarometerBarometer Ba*rom"e*ter, n. [Gr. ? weight + -meter: cf. F.
barom[`e]tre.]
An instrument for determining the weight or pressure of the
atmosphere, and hence for judging of the probable changes of
weather, or for ascertaining the height of any ascent.
Note: The barometer was invented by Torricelli at Florence
about 1643. It is made in its simplest form by filling
a graduated glass tube about 34 inches long with
mercury and inverting it in a cup containing mercury.
The column of mercury in the tube descends until
balanced by the weight of the atmosphere, and its rise
or fall under varying conditions is a measure of the
change in the atmospheric pressure. At the sea level
its ordinary height is about 30 inches (760
millimeters). See Sympiesometer. --Nichol.
Aneroid barometer. See Aneroid barometer, under
Aneroid.
Marine barometer, a barometer with tube contracted at
bottom to prevent rapid oscillations of the mercury, and
suspended in gimbals from an arm or support on shipboard.
Mountain barometer, a portable mercurial barometer with
tripod support, and long scale, for measuring heights.
Siphon barometer, a barometer having a tube bent like a
hook with the longer leg closed at the top. The height of
the mercury in the longer leg shows the pressure of the
atmosphere.
Wheel barometer, a barometer with recurved tube, and a
float, from which a cord passes over a pulley and moves an
index. Barometric
Barometric Bar`o*met"ric, Barometrical Bar`o*met"ric*al, a.
Pertaining to the barometer; made or indicated by a
barometer; as, barometric changes; barometrical observations.
Barometrical
Barometric Bar`o*met"ric, Barometrical Bar`o*met"ric*al, a.
Pertaining to the barometer; made or indicated by a
barometer; as, barometric changes; barometrical observations.
Barometrically
Barometrically Bar`o*met"ric*al*ly, adv.
By means of a barometer, or according to barometric
observations.
Barometrograph
Barometrograph Bar`o*met"ro*graph, n. [Gr. ? weight + ?
measure + -graph.]
A form of barometer so constructed as to inscribe of itself
upon paper a record of the variations of atmospheric
pressure.
Barometry
Barometry Ba*rom"e*try, n.
The art or process of making barometrical measurements.
Bifilar micrometerBifilar Bi*fi"lar, a. [Pref. bi- + filar.]
Two-threaded; involving the use of two threads; as, bifilar
suspension; a bifilar balance.
Bifilar micrometer (often called a bifilar), an
instrument form measuring minute distances or angles by
means of two very minute threads (usually spider lines),
one of which, at least, is movable; -- more commonly
called a filar micrometer. Butyrometer
Butyrometer Bu`ty*rom"e*ter, n. [L. butyrum butter + -meter.]
An instrument for determining the amount of fatty matter or
butter contained in a sample of milk.
Callosamia prometheaPromethea Pro*me"the*a, n. [NL. See Prometheus.] (Zo["o]l.)
A large American bombycid moth (Callosamia promethea). Its
larva feeds on the sassafras, wild cherry, and other trees,
and suspends its cocoon from a branch by a silken band. ChlorometerChlorometer Chlo*rom"e*ter, n. [Cf. F. chlorom[`e]tre. See
Chlorine, and -meter.]
An instrument to test the decoloring or bleaching power of
chloride of lime. Chlorometry
Chlorometry Chlo*rom"e*try, n.
The process of testing the bleaching power of any combination
of chlorine.
Chondrometer
Chondrometer Chon*drom"e*ter, n. [Gr. ? a grain (of wheat or
spelt), cartilage + -meter.]
A steelyard for weighting grain.
Chorometry
Chorometry Cho*rom"e*try, n. [Gr. ? place + -metry.]
The art of surveying a region or district.
Cylindrometric
Cylindrometric Cy*lin`dro*met"ric
(s[i^]*l[i^]n`dr[-o]*m[e^]t"r[i^]k), a. [Gr. ky`lindros +
me`tron measure.]
Belonging to a scale used in measuring cylinders.
Dendrometer
Dendrometer Den*drom"e*ter, n. [Gr. de`ndron tree + -meter:
cf. F. dendrom[`e]tre.]
An instrument to measure the height and diameter of trees.
Double image micrometerMicrometer Mi*crom"e*ter, n. [Micro- + -meter: cf. F.
microm[`e]tre.]
An instrument, used with a telescope or microscope, for
measuring minute distances, or the apparent diameters of
objects which subtend minute angles. The measurement given
directly is that of the image of the object formed at the
focus of the object glass.
Circular, or Ring, micrometer, a metallic ring fixed in
the focus of the object glass of a telescope, and used to
determine differences of right ascension and declination
between stars by observations of the times at which the
stars cross the inner or outer periphery of the ring.
Double image micrometer, a micrometer in which two images
of an object are formed in the field, usually by the two
halves of a bisected lens which are movable along their
line of section by a screw, and distances are determined
by the number of screw revolutions necessary to bring the
points to be measured into optical coincidence. When the
two images are formed by a bisected object glass, it is
called a divided-object-glass micrometer, and when the
instrument is large and equatorially mounted, it is known
as a heliometer.
Double refraction micrometer, a species of double image
micrometer, in which the two images are formed by the
double refraction of rock crystal.
Filar, or Bifilar, micrometer. See under Bifilar.
Micrometer caliper or gauge (Mech.), a caliper or gauge
with a micrometer screw, for measuring dimensions with
great accuracy.
Micrometer head, the head of a micrometer screw.
Micrometer microscope, a compound microscope combined with
a filar micrometer, used chiefly for reading and
subdividing the divisions of large astronomical and
geodetical instruments.
Micrometer screw, a screw with a graduated head used in
some forms of micrometers.
Position micrometer. See under Position.
Scale, or Linear, micrometer, a minute and very
delicately graduated scale of equal parts used in the
field of a telescope or microscope, for measuring
distances by direct comparison. Double refraction micrometerMicrometer Mi*crom"e*ter, n. [Micro- + -meter: cf. F.
microm[`e]tre.]
An instrument, used with a telescope or microscope, for
measuring minute distances, or the apparent diameters of
objects which subtend minute angles. The measurement given
directly is that of the image of the object formed at the
focus of the object glass.
Circular, or Ring, micrometer, a metallic ring fixed in
the focus of the object glass of a telescope, and used to
determine differences of right ascension and declination
between stars by observations of the times at which the
stars cross the inner or outer periphery of the ring.
Double image micrometer, a micrometer in which two images
of an object are formed in the field, usually by the two
halves of a bisected lens which are movable along their
line of section by a screw, and distances are determined
by the number of screw revolutions necessary to bring the
points to be measured into optical coincidence. When the
two images are formed by a bisected object glass, it is
called a divided-object-glass micrometer, and when the
instrument is large and equatorially mounted, it is known
as a heliometer.
Double refraction micrometer, a species of double image
micrometer, in which the two images are formed by the
double refraction of rock crystal.
Filar, or Bifilar, micrometer. See under Bifilar.
Micrometer caliper or gauge (Mech.), a caliper or gauge
with a micrometer screw, for measuring dimensions with
great accuracy.
Micrometer head, the head of a micrometer screw.
Micrometer microscope, a compound microscope combined with
a filar micrometer, used chiefly for reading and
subdividing the divisions of large astronomical and
geodetical instruments.
Micrometer screw, a screw with a graduated head used in
some forms of micrometers.
Position micrometer. See under Position.
Scale, or Linear, micrometer, a minute and very
delicately graduated scale of equal parts used in the
field of a telescope or microscope, for measuring
distances by direct comparison. Durometer
Durometer Du*rom"e*ter, n. [L. durus hard + -meter.]
An instrument for measuring the degree of hardness;
especially, an instrument for testing the relative hardness
of steel rails and the like.
Meaning of Romet from wikipedia
