(ˈ)āˈmīˌkrän sometimes -mi- or -krən
plural -s
: one of the smallest particles detectable with the ultramicroscope (about 1×10−7 cm in diameter)

Word History


International Scientific Vocabulary a- entry 2 + micron, originally formed as German amikron

First Known Use

circa 1906, in the meaning defined above

Time Traveler
The first known use of amicron was circa 1906

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Dictionary Entries Near amicron

Cite this Entry

“Amicron.” Dictionary, Merriam-Webster, Accessed 21 Jul. 2024.

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