angle of divergence
angle of divergence[′aŋ·gəl əv də′vərj·əns]
The angular spread of an electron beam in an oscilloscope.
In terminal instrument procedures, the smaller of the angles formed by the intersection of two courses, radials, bearings, or combinations thereof.
The angular spread of a light beam from a collimating device or laser.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.