Dictionary
co•log•a•rithm
Pronunciation: (kō-lô'gu-ri&thslash;"um, -rith"um, -log'u-), [key]—
n. Math.
the logarithm of the reciprocal of a number, often used in expressing the logarithm of a fraction: log
7/25 = log 7 + colog 25.
Symbol: colog
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.