Simple Definition of coefficient

from our Learner's Dictionary

coefficient

noun

plural coefficients
1
mathematics : a number by which another number or symbol is multiplied
5 is the coefficient of y in the term 5y.
2
physics : a number that is used to measure some property or characteristic of a substance
a coefficient of friction
the metal's coefficient of expansion

Cite this Entry

“Coefficient.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/coefficient. Accessed 11 Jun. 2026.

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