exponential decay(redirected from Exponentially decreasing function)
Also found in: Dictionary, Thesaurus.
exponential decay[‚ek·spə′n en·chəl di′kā]
The decrease of some physical quantity according to the exponential law N (t)= N0 e -t /τ, where τ is a constant called the decay time.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.