cologarithm

[ koh-law-guh-rith-uhm, -rith-uhm, -log-uh- ]

nounMathematics.
  1. 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

Origin of cologarithm

1
First recorded in 1880–85; co- + logarithm

Words Nearby cologarithm

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British Dictionary definitions for cologarithm

cologarithm

/ (kəʊˈlɒɡəˌrɪðəm) /


noun
  1. the logarithm of the reciprocal of a number; the negative value of the logarithm: the cologarithm of 4 is log 1/4 Abbreviation: colog

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