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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

Follow-up observations of these galaxies at longer wavelengths with Webb’s midinfrared instrument or ground-based radio telescopes sensitive to submillimeter waves could reveal the gas clouds actively building stars.

From Science Magazine ● Aug. 9, 2022

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

From The Verge ● Sep. 23, 2015

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