sub·​mil·​li·​me·​ter ˌsəb-ˈmi-lə-ˌmē-tər How to pronounce submillimeter (audio)
: being less than a millimeter in diameter or wavelength
a submillimeter particle
a submillimeter radio wave

Examples of submillimeter in a Sentence

Recent Examples on the Web In addition, some of the puzzle-piece-like parts of the vacuum vessel—intended to fit together with submillimeter precision—proved not to be manufactured as precisely as needed. Charles Seife, Scientific American, 15 June 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'submillimeter.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of submillimeter was in 1954

Dictionary Entries Near submillimeter

Cite this Entry

“Submillimeter.” Dictionary, Merriam-Webster, Accessed 15 Apr. 2024.

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