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

Juba :: "Juba (n.) A loose panicle, the axis of which falls to pieces, as in certain grasses..
Circumduction :: Circumduction (n.) The rotation of a limb round an imaginary axis, so as to describe a concial surface..
Nectostem :: Nectostem (n.) That portion of the axis which bears the nectocalyces in the Siphonophora.
Right :: Right (a.) Upright; erect from a base; having an upright axis; not oblique; as, right ascension; a right pyramid or cone..
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..
Tubicorn :: Tubicorn (n.) Any ruminant having horns composed of a bony axis covered with a horny sheath; a hollow-horned ruminant.
Sporangia :: Sporangiophore (n.) The axis or receptacle in certain ferns (as Trichomanes), which bears the sporangia..
Rhizotaxis :: Rhizotaxis (n.) The arrangement of the roots of plants.
Inflexed :: Inflexed (a.) Bent or turned abruptly inwards, or toward the axis, as the petals of a flower..
Dome :: Dome (n.) A prism formed by planes parallel to a lateral axis which meet above in a horizontal edge, like the roof of a house; also, one of the planes of such a form..
Quadrature :: Quadrature (a.) The act of squaring; the finding of a square having the same area as some given curvilinear figure; as, the quadrature of a circle; the operation of finding an expression for the area of a figure bounded wholly or in part by a curved line, as by a curve, two ordinates, and the axis of abscissas..
Praxis :: Praxis (n.) An example or form of exercise, or a collection of such examples, for practice..
Plagiotropic :: Plagiotropic (a.) Having the longer axis inclined away from the vertical line.
Virgularian :: Virgularian (n.) Any one of numerous species of long, slender Alcyonaria belonging to Virgularia and allied genera of the family Virgularidae. These corals are allied to the sea-pens, but have a long rodlike rhachis inclosing a slender, round or square, calcareous axis. The polyps are arranged in transverse rows or clusters along each side of the rhachis..
Rhachis :: Rhachis (n.) The principal axis in a raceme, spike, panicle, or corymb..
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,
Swivel :: Swivel (a.) A piece, as a ring or hook, attached to another piece by a pin, in such a manner as to permit rotation about the pin as an axis..
Subtartarean :: Subtangent (n.) The part of the axis contained between the ordinate and tangent drawn to the same point in a curve.
Rhachilla :: Rhachilla (n.) A branch of inflorescence; the zigzag axis on which the florets are arranged in the spikelets of grasses.
Gorgonia :: Gorgonia (n.) A genus of Gorgoniacea, formerly very extensive, but now restricted to such species as the West Indian sea fan (Gorgonia flabellum), sea plume (G. setosa), and other allied species having a flexible, horny axis..
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