register key

American

[rej-uh-ster kee] / ˈrɛdʒ ə stər ˈki /

noun

plural

Music. a lever on a wind instrument that, when pressed, shifts the note being played up in pitch.

Example Sentences

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It’s equipped with optical mechanical switches that can theoretically register key presses far faster than their traditional mechanical counterparts.

From The Verge • Sep. 24, 2021

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023