Definition of axis

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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..

Lern More About Axis

Anticous :: Anticous (a.) Facing toward the axis of the flower, as in the introrse anthers of the water lily..
Introrse :: Introrse (a.) Turning or facing inward, or toward the axis of the part to which it belongs..
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..
Cephalocercal :: Cephalocercal (a.) Relating to the long axis of the body.
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..
Semilens :: Semilens (n.) The half of a lens divided along a plane passing through its axis.
Monaxial :: Monaxial (a.) Having only one axis; developing along a single line or plane; as, monaxial development..
Carpophore :: Carpophore (n.) A slender prolongation of the receptacle as an axis between the carpels, as in Geranium and many umbelliferous plants..
Succulence :: Succula (n.) A bare axis or cylinder with staves or levers in it to turn it round, but without any drum..
Plagiotropic :: Plagiotropic (a.) Having the longer axis inclined away from the vertical line.
Squarrose :: Squarrose (a.) Consisting of scales widely divaricating; having scales, small leaves, or other bodies, spreading widely from the axis on which they are crowded; -- said of a calyx or stem..
Preaxial :: Preaxial (a.) Situated in front of any transverse axis in the body of an animal; anterior; cephalic; esp., in front, or on the anterior, or cephalic (that is, radial or tibial) side of the axis of a limb..
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
Pitch :: Pitch (n.) The length, measured along the axis, of a complete turn of the thread of a screw, or of the helical lines of the blades of a screw propeller..
Ginglymodi :: Ginglymodi (n.) An order of ganoid fishes, including the modern gar pikes and many allied fossil forms. They have rhombic, ganoid scales, a heterocercal tail, paired fins without an axis, fulcra on the fins, and a bony skeleton, with the vertebrae convex in front and concave behind, forming a ball and socket joint. See Ganoidel..
Paraboloid :: Paraboloid (n.) The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas.
Tympanum :: Tympanum (n.) A drum-shaped wheel with spirally curved partitions by which water is raised to the axis when the wheel revolves with the lower part of the circumference submerged, -- used for raising water, as for irrigation..
Extrorse :: Extrorse (a.) Facing outwards, or away from the axis of growth; -- said esp. of anthers occupying the outer side of the filament..
Anteflexion :: Anteflexion (n.) A displacement forward of an organ, esp. the uterus, in such manner that its axis is bent upon itself..
Rhachis :: Rhachis (n.) The principal axis in a raceme, spike, panicle, or corymb..
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