Definition of cylinder axis. Meaning of cylinder axis. Synonyms of cylinder axis

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Definition of cylinder axis

cylinder axis
Axis 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.
Cylinder axis
Cylinder Cyl"in*der (s?l"?n-d?r), n. [F. cylindre, OF. cilindre, L. cylindrus, fr. Gr. ky`lindros, fr. kyli`ndein, kyli`ein, to roll. Cf. Calender the machine.] 1. (Geom.) (a) A solid body which may be generated by the rotation of a parallelogram round one its sides; or a body of rollerlike form, of which the longitudinal section is oblong, and the cross section is circular. (b) The space inclosed by any cylindrical surface. The space may be limited or unlimited in length. 2. Any hollow body of cylindrical form, as: (a) The chamber of a steam engine in which the piston is moved by the force of steam. (b) The barrel of an air or other pump. (c) (Print.) The revolving platen or bed which produces the impression or carries the type in a cylinder press. (d) The bore of a gun; the turning chambered breech of a revolver. 3. The revolving square prism carrying the cards in a Jacquard loom. Cylinder axis. (Anat.) See Axis cylinder, under Axis. Cylinder engine (Paper Making), a machine in which a cylinder takes up the pulp and delivers it in a continuous sheet to the dryers. Cylinder escapement. See Escapement. Cylinder glass. See Glass. Cylinder mill. See Roller mill. Cylinder press. See Press.

Meaning of cylinder axis from wikipedia

- called the axis of the cylinder and it p****es through the centers of the two bases. The bare term cylinder often refers to a solid cylinder with circular...
- A cylindrical coordinate system is a three-dimensional coordinate system that specifies point positions by the distance from a chosen reference axis (axis...
- the direction parallel to its cylinder's axis (in the tangent plane). A toric lens combines the effect of a cylindrical lens with that of an ordinary...
- engines") have the cylinders aligned in two separate planes or 'banks', so that they appear to be in a "V" when viewed along the axis of the crankshaft...
- Jackson cross cylinder is a single low power lens, which is a combination of a plus cylinder and a minus cylinder of equal power with axis perpendicular...
- ****ume (without loss of generality) that the axis of the cylinder coincides with the z-axis; points on the cylinder (with radius r {\displaystyle r} ) satisfy...
- coordinate system A generator of a cylinder is a straight line on the surface parallel to the axis of the cylinder. The function y(φ) is not completely...
- remains unchanged if the stressed object is rotated about some fixed axis. Cylinder stress patterns include: cir****ferential stress, or hoop stress, a normal...
- cylinder base (or one endpoint), a ^ = ( a x , a y , a z ) {\displaystyle {\hat {a}}=(a_{x},a_{y},a_{z})} be the cylinder axis unit vector, cylinder radius...
- occluder Jackson Cross Cylinder: a combination of two cylinders whose powers are numerically equal and of opposite sign (+/-) and whose axis are perpendicular...