potential index of refraction
potential index of refraction[pə′ten·chəl ¦in‚deks əv ri′frak·shən]
An atmospheric index of refraction so formulated that it would have no height variation in an adiabatic atmosphere. Also known as potential refractive index.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.