Definition of axis

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Axis (n.) The second vertebra of the neck, or vertebra dentata..

Lern More About Axis

Trochoid :: Trochoid (a.) Admitting of rotation on an axis; -- sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column.
Spike :: Spike (n.) A kind of flower cluster in which sessile flowers are arranged on an unbranched elongated axis.
Epaxial :: Epaxial (a.) Above, or on the dorsal side of, the axis of the skeleton; episkeletal..
Cam :: Cam (n.) A curved wedge, movable about an axis, used for forcing or clamping two pieces together..
Symposiac :: Sympodium (n.) An axis or stem produced by dichotomous branching in which one of the branches is regularly developed at the expense of the other, as in the grapevine..
Rhachis :: Rhachis (n.) The principal axis in a raceme, spike, panicle, or corymb..
Sclerobase :: Sclerobase (n.) The calcareous or hornlike coral forming the central stem or axis of most compound alcyonarians; -- called also foot secretion. See Illust. under Gorgoniacea, and Coenenchyma..
Axis :: Axis (n.) 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..
Abduction :: Abduction (n.) The movement which separates a limb or other part from the axis, or middle line, of the body..
Solenoid :: Solenoid (n.) An electrodynamic spiral having the conjuctive wire turned back along its axis, so as to neutralize that component of the effect of the current which is due to the length of the spiral, and reduce the whole effect to that of a series of equal and parallel circular currents. When traversed by a current the solenoid exhibits polarity and attraction or repulsion, like a magnet..
Rolling :: Rolling (a.) Rotating on an axis, or moving along a surface by rotation; turning over and over as if on an axis or a pivot; as, a rolling wheel or ball..
Root :: Root (n.) The descending, and commonly branching, axis of a plant, increasing in length by growth at its extremity only, not divided into joints, leafless and without buds, and having for its offices to fix the plant in the earth, to supply it with moisture and soluble matters, and sometimes to serve as a reservoir of nutriment for future growth. A true root, however, may never reach the ground, but may be attached to a wall, etc., as in the ivy, or may hang loosely in the air, as in some epiphy
Axis :: Axis (n.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded..
Verticle :: Verticle (n.) An axis; hinge; a turning point.
Point-blank :: Point-blank (n.) With artillery, the point where the projectile first strikes the horizontal plane on which the gun stands, the axis of the piece being horizontal..
Screw :: Screw (n.) A straight line in space with which a definite linear magnitude termed the pitch is associated (cf. 5th Pitch, 10 (b)). It is used to express the displacement of a rigid body, which may always be made to consist of a rotation about an axis combined with a translation parallel to that axis..
Drumlin :: Drumlin (n.) A hill of compact, unstratified, glacial drift or till, usually elongate or oval, with the larger axis parallel to the former local glacial motion..
Vane :: Vane (n.) Any flat, extended surface attached to an axis and moved by the wind; as, the vane of a windmill; hence, a similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc..
Equatorial :: Equatorial (n.) An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel to the axis of the earth, and each carrying a graduated circle, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known. The motion in right ascension is sometimes communicated by clockw
Juba :: "Juba (n.) A loose panicle, the axis of which falls to pieces, as in certain grasses..
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