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单词 pressel
释义

pressel

/ˈprɛsl/
noun
An electric switch that is operated by a push-button; (originally) one hanging from the end of a length of flexible wire; (in later use) especially one on a piece of radio communication equipment, typically permitting transmission when depressed and reception when released. Now chiefly pressel switch.

Origin

Late 19th century. Origin uncertain; probably from press + a suffix of uncertain origin (perhaps -el or -el), perhaps after tassel.

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更新时间:2024/11/12 7:47:30