Axis of a curve

(Geom.) a straight line which bisects a system of parallel chords of a curve; called a principal axis, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the major axis and the minor axis, and the two axes of the hyperbola are the transverse axis and the conjugate axis.
See under Axis.

See also: Axis Curve

Axiom of Choice
Axiom of Comprehension
Axiomatic Architecture Description Language
axiomatic semantics
axiomatic set theory
axis band
Axis cylinder
Axis in peritrochio
Axis of a balance
-- Axis of a curve --
Axis of a lens
Axis of a microscope
Axis of a pyramid
Axis of abscissas
Axis of oscillation
Axis of polarization
Axis of revolution
axis of rotation
Axis of symmetry
Axis of the
Axis of the Ionic capital
axis vertebra
axle bar
Axle box
axle grease
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