# logarithmic

### or logarithmical

[law-guh-rith -mik, -rith-, log-uh-] /ˌlɔ gəˈrɪð mɪk, -ˈrɪθ-, ˌlɒg ə-/
1.
pertaining to a logarithm or logarithms.
2.
(of an equation) having a logarithm as one or more of its unknowns.
3.
1. pertaining to the function y = log x.
2. expressible by means of logarithms.
Origin of logarithmic
1690-1700
1690-1700; logarithm + -ic
Related forms
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for logarithmic
Historical Examples
• Sixty seconds later the Brainchild began her long, logarithmic drop toward the surface of Eisberg.

Gordon Randall Garrett
• The common snail-shell is constructed according to logarithmic laws.

J. Henri Fabre
• For she is not related to the Worm; and yet she is familiar with the logarithmic spiral and uses it in her web, in a simpler form.

J. Henri Fabre
• By this characteristic we recognize the ‘logarithmic spiral.’

J. Henri Fabre
• The Professor, a logarithmic machine, and I had had a falling out not long before.

Thomas Nelson Page
• Should logarithmic tables be withheld from him until the theoretical foundation is laid in the mind of the pupil?

Florian Cajori
• Such tables can scarcely be said to come under the head of logarithmic tables.

• The curve is a logarithmic spiral, and the use of the instrument involves no other labor than that of setting it in position.

• Also, one of the examples of Mercator sailing to be done by both the Inspection and logarithmic method.

Ernest Gallaudet Draper
• By this characteristic we recognize what geometricians have named the logarithmic spiral.

J. Henri Fabre
British Dictionary definitions for logarithmic

## logarithmic

/ˌlɒɡəˈrɪðmɪk/
1.
of, relating to, using, or containing logarithms of a number or variable
2.
consisting of, relating to, or using points or lines whose distances from a fixed point or line are proportional to the logarithms of numbers
log
Derived Forms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for logarithmic

1690s, from logarithm + -ic. Related: Logarithmical (1630s).

Online Etymology Dictionary, © 2010 Douglas Harper
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### Difficulty index for logarithmic

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### Word Value for logarithmic

19
22
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