【医】 角孔径(显微镜)

Angular \An"gu*lar\, a. [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.