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submillimeter

American  
[suhb-mil-uh-mee-ter] / sʌbˈmɪl əˌmi tər /

adjective

  1. less than a millimeter in size.

    a submillimeter wave.


Etymology

Origin of submillimeter

First recorded in 1950–55; sub- + millimeter

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Ortega-Jiménez conducted dozens of experiments, recording them with a special high-speed camera capable of capturing the midair trajectories of the submillimeter worms, which are essentially invisible to the human eye, at 10,000 frames per second.

From Science Daily Oct. 15, 2025

The next step in this research is to scale the robot down to submillimeter scales.

From Science Daily Oct. 23, 2023

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.

From Scientific American Jun. 15, 2023

Just as at other wavelengths, the Cow’s submillimeter signal remained high and steady for several weeks, then began to tail off.

From Science Magazine Jan. 11, 2019

A simulation of how gas flows in a "submillimeter galaxy."

From The Verge Sep. 23, 2015

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