millesimal

noun

mil·les·i·mal mə-ˈle-sə-məl

: the quotient of a unit divided by 1000 : one of 1000 equal parts

millesimal adjective

millesimally

mə-ˈle-sə-mə-lē

adverb

Word History

Etymology

Latin millesimus, adjective, thousandth, from mille

First Known Use

1719, in the meaning defined above

Time Traveler

The first known use of millesimal was in 1719

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Browse Nearby Words

Milles

millesimal

millet

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Cite this Entry

Style

“Millesimal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millesimal. Accessed 17 Jun. 2025.

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