ultramicro

adjective

ul·​tra·​mi·​cro ˌəl-trə-ˈmī-(ˌ)krō How to pronounce ultramicro (audio)
Synonyms of ultramicronext
: being or dealing with something smaller than micro

Word History

First Known Use

1937, in the meaning defined above

Time Traveler
The first known use of ultramicro was in 1937

Dictionary Entries Near ultramicro

ultrametamorphism

ultramicro

ultramicroanalysis

See More Nearby Entries 

Cite this Entry

“Ultramicro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultramicro. Accessed 19 Apr. 2024.

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