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abduct to draw or cause to move away from the main axis of the body. (Cf. adduct.) [1/2 definitions]
abduction of a muscle, the act or process of drawing away from the main axis of the body. [1/2 definitions]
abscissa the distance of a point from the vertical axis of a graph as measured parallel to the horizontal axis. (Cf. ordinate.)
adduct to move or pull (a body part such as a muscle) toward the main axis. (Cf. abduct.)
Allies in World War II, the nations that fought against the Axis, esp. Great Britain, the Soviet Union, and the United States. [1/2 definitions]
arbor2 the shaft or axis which turns or supports a rotating cutting tool such as a lathe.
axes1 pl. of axis.
axial of, concerning, or functioning as an axis. [2 definitions]
barrel roll a maneuver in which an aircraft completes one spiral revolution around its lengthwise axis, without changing direction of flight.
CAT scan a cross-sectional image formed by a computerized combination of x-rays taken along a selected axis of the body, used as a diagnostic tool in medical treatment; computerized axial tomography scan.
celestial pole either of two points in the celestial sphere that the earth's axis would intersect if it were extended.
center an axis or point around which something revolves or rotates. [1/9 definitions]
centrifugal moving or being directed outward from a center point or axis. [1/3 definitions]
centrifugal force a force that tends to pull a particle or body outward, away from the axis around which it rotates. (Cf. centripetal force.)
centripetal forced or moving inward toward a center point or axis. [1/2 definitions]
centripetal force a force that tends to pull a particle or body toward the axis around which it rotates. (Cf. centrifugal force.)
coaxial placed on or having a common axis.
cone in geometry, a three-dimensional shape created by rotating a right triangle 360 degrees on its vertical axis. [1/5 definitions]
conoid in geometry, a solid formed by the revolution of a conic section around its axis. [1/3 definitions]
cross section a planar view exposed by cutting through an object, usu. at right angles to its longitudinal axis. [1/3 definitions]
crosstown running or extending across the longitudinal axis, and main thoroughfares, of a city. [1/2 definitions]