log·a·rithm
ˈlȯ-gə-ˌri-t͟həm 
ˈlä-
: the exponent that indicates the power to which a base number is raised to produce a given number
the logarithm of 100 to the base 10 is 2
log·a·rith·mic
-mēk
variants
or less commonly logarithmical
-mə̇kəl,
-mēk-
1
: of, involving, or expressed in terms of a logarithm
2
: using, based on, or relating to a logarithmic scale
Examples of logarithm in a Sentence
Recent Examples on the Web
Connie McIntosh, Forbes.com, 27 Apr. 2026
His solution was to propose a hypothetical kind of particle with energy levels given by the logarithms of prime numbers.
—Lyndie Chiou, Scientific American, 3 Mar. 2026
Recall that regressing the logarithm of bitcoin’s price against the logarithm of time generates a tight fit, and this is consistent with bitcoin's price following a power law.
—Korok Ray, Forbes, 25 Feb. 2025
Given a set of possible characters in a message, Shannon’s formula defines the uncertainty about which character will appear next as the sum of the probability of each character appearing multiplied by the logarithm of that probability.
—Zack Savitsky, Quanta Magazine, 13 Dec. 2024
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Noun
Quantum computers can dismantle classical encryption by efficiently solving integer factorization and discrete logarithms; the mathematical foundations of RSA and ECC protocols that secure virtually every financial transaction, supply chain system and customer database today.
—Connie McIntosh, Forbes.com, 27 Apr. 2026
His solution was to propose a hypothetical kind of particle with energy levels given by the logarithms of prime numbers.
—Lyndie Chiou, Scientific American, 3 Mar. 2026
Recall that regressing the logarithm of bitcoin’s price against the logarithm of time generates a tight fit, and this is consistent with bitcoin's price following a power law.
—Korok Ray, Forbes, 25 Feb. 2025
Given a set of possible characters in a message, Shannon’s formula defines the uncertainty about which character will appear next as the sum of the probability of each character appearing multiplied by the logarithm of that probability.
—Zack Savitsky, Quanta Magazine, 13 Dec. 2024
See All Example Sentences for logarithm
Cite this Entry
“Logarithm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/logarithm. Accessed 16 Jun. 2026.
Copy CitationKids Definition
logarithm
noun
log·a·rithm
ˈlȯg-ə-ˌrit͟h-əm
ˈläg-
: the exponent that indicates the power to which a base number is raised to produce a given number
the logarithm of 100 to the base 10 is 2
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