: a unit of capacity equal to one millionth of a liter see Metric System Table

Examples of microliter in a Sentence

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But, the results of a spinal tap showed a clear problem: her cerebrospinal fluid showed a count of 694 white blood cells per microliter. Ars Technica, 13 Feb. 2025 The voxel size has shrunk from a volume of about a microliter (a cubic millimeter) to smaller than 0.1 microliters under some circumstances, comparable to coarse grains of sand. IEEE Spectrum, 12 Dec. 2023

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1890, in the meaning defined above

Time Traveler
The first known use of microliter was circa 1890

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Cite this Entry

“Microliter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microliter. Accessed 28 Apr. 2025.

Medical Definition

microliter

noun
mi·​cro·​li·​ter
variants or chiefly British microlitre
: a unit of capacity equal to one millionth of a liter
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