submillimeter

American  

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

adjective

1. less than a millimeter in size.

   a submillimeter wave.

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Etymology

Origin of submillimeter

First recorded in 1950–55; sub- + millimeter

Example Sentences

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 study involved high-resolution scans that enabled the researchers to visualize brain connections at submillimeter spatial resolution.

From Science Daily • May 1, 2024

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