What does angular mean?
The definition of angular
An”gu*lar, a.
Etym: [L. angularis, fr. angulus angle, corner. See Angle.]

1 Relating to an angle or to angles; having an angle or angles; forming an angle or corner; sharp-cornered; pointed; as, an angular figure.
2 Measured by an angle; as, angular distance.
3 Fig.: Lean; lank; raw-boned; ungraceful; sharp and stiff in character; as, remarkably angular in his habits and appearance; an angular female. Angular aperture, Angular distance. See Aperture, Distance.

— Angular motion, the motion of a body about a fixed point or fixed axis, as of a planet or pendulum. It is equal to the angle passed over at the point or axis by a line drawn to the body.
— Angular point, the point at which the sides of the angle meet; the vertex.
— Angular velocity, the ratio of anuglar motion to the time employed in describing.

An”gu*lar, n. (Anat.)
A bone in the base of the lower jaw of many birds, reptiles, and fishes.