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

Diaphysis :: Diaphysis (n.) An abnormal prolongation of the axis of inflorescence.
Eccentric :: Eccentric (n.) A circle described about the center of an elliptical orbit, with half the major axis for radius..
Cremocarp :: Cremocarp (n.) The peculiar fruit of fennel, carrot, parsnip, and the like, consisting of a pair of carpels pendent from a supporting axis..
Eccentricity :: Eccentricity (n.) The ratio of the distance between the center and the focus of an ellipse or hyperbola to its semi-transverse axis.
Sympodia :: Sympodial (a.) Composed of superposed branches in such a way as to imitate a simple axis; as, a sympodial stem..
Rhabdopleura :: Rhabdopleura (n.) A genus of marine Bryozoa in which the tubular cells have a centralchitinous axis and the tentacles are borne on a bilobed lophophore. It is the type of the order Pterobranchia, or Podostomata.
Scalene :: Scalene (a.) Having the axis inclined to the base, as a cone..
Bilateral :: Bilateral (a.) Of or pertaining to the two sides of a central area or organ, or of a central axis; as, bilateral symmetry in animals, where there is a similarity of parts on the right and left sides of the body..
Spike :: Spike (n.) A kind of flower cluster in which sessile flowers are arranged on an unbranched elongated axis.
Screw :: Screw (n.) A cylinder, or a cylindrical perforation, having a continuous rib, called the thread, winding round it spirally at a constant inclination, so as to leave a continuous spiral groove between one turn and the next, -- used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male screw, or,
Columella :: Columella (n.) A columnlike axis in the capsules of mosses.
Centripetal :: Centripetal (a.) Having the radicle turned toward the axis of the fruit, as some embryos..
Treadmill :: Treadmill (n.) A mill worked by persons treading upon steps on the periphery of a wide wheel having a horizontal axis. It is used principally as a means of prison discipline. Also, a mill worked by horses, dogs, etc., treading an endless belt..
Lap :: Lap (n.) A piece of brass, lead, or other soft metal, used to hold a cutting or polishing powder in cutting glass, gems, and the like, or in polishing cutlery, etc. It is usually in the form of wheel or disk, which revolves on a vertical axis..
Eccentricity :: Eccentricity (n.) The ratio of the distance of the center of the orbit of a heavenly body from the center of the body round which it revolves to the semi-transverse axis of the orbit.
Ring :: Ring (n.) The solid generated by the revolution of a circle, or other figure, about an exterior straight line (as an axis) lying in the same plane as the circle or other figure..
Nutation :: Nutation (n.) A very small libratory motion of the earth's axis, by which its inclination to the plane of the ecliptic is constantly varying by a small amount..
Kite :: Kite (n.) A quadrilateral, one of whose diagonals is an axis of symmetry..
Latus Rectum :: Latus rectum () The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis. See Focus, and Parameter..
Posterior :: Posterior (a.) On the side next the axis of inflorescence; -- said of an axillary flower.
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