Definition of axis

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Axis (n.) 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..

Lern More About Axis

Posterior :: Posterior (a.) On the side next the axis of inflorescence; -- said of an axillary flower.
Columella :: Columella (n.) An axis to which a carpel of a compound pistil may be attached, as in the case of the geranium; or which is left when a pod opens..
Beam :: Beam (n.) A heavy iron lever having an oscillating motion on a central axis, one end of which is connected with the piston rod from which it receives motion, and the other with the crank of the wheel shaft; -- called also working beam or walking beam..
Ordinate :: Ordinate (n.) The distance of any point in a curve or a straight line, measured on a line called the axis of ordinates or on a line parallel to it, from another line called the axis of abscissas, on which the corresponding abscissa of the point is measured..
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
Scalene :: Scalene (a.) Having the axis inclined to the base, as a cone..
Orthodiagonal :: Orthodiagonal (n.) The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis.
Rotate :: Rotate (v. i.) To turn, as a wheel, round an axis; to revolve..
Gyrate :: Gyrate (n.) To revolve round a central point; to move spirally about an axis, as a tornado; to revolve..
Corticifer :: Corticifer (n.) One of the Gorgoniacea; -- so called because the fleshy part surrounds a solid axis, like a bark..
Centrum :: Centrum (n.) The body, or axis, of a vertebra. See Vertebra..
Corymb :: Corymb (n.) A flat-topped or convex cluster of flowers, each on its own footstalk, and arising from different points of a common axis, the outermost blossoms expanding first, as in the hawthorn..
Prism :: Prism (n.) A form the planes of which are parallel to the vertical axis. See Form, n., 13..
Ellipse :: Ellipse (n.) An oval or oblong figure, bounded by a regular curve, which corresponds to an oblique projection of a circle, or an oblique section of a cone through its opposite sides. The greatest diameter of the ellipse is the major axis, and the least diameter is the minor axis. See Conic section, under Conic, and cf. Focus..
Contrate :: Contrate (a.) Having cogs or teeth projecting parallel to the axis, instead of radiating from it..
Corncob :: Corncob (n.) The cob or axis on which the kernels of Indian corn grow.
Turn :: Turn (v. i.) To move round; to have a circular motion; to revolve entirely, repeatedly, or partially; to change position, so as to face differently; to whirl or wheel round; as, a wheel turns on its axis; a spindle turns on a pivot; a man turns on his heel..
Spheromere :: Spheromere (n.) Any one of the several symmetrical segments arranged around the central axis and composing the body of a radiate anmal.
Whirligig :: Whirligig (n.) A child's toy, spun or whirled around like a wheel upon an axis, or like a top..
Rotatory :: Rotatory (a.) Turning as on an axis; rotary.
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