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单词 thermophone
释义

thermophone

[ thur-muh-fohn ]
/ ˈθɜr məˌfoʊn /

noun

an electroacoustic transducer that forms sound waves by the expansion and contraction of the air adjacent to a conductor that varies in temperature according to the magnitude of the current passing through it; formerly used to calibrate microphones.

Origin of thermophone

First recorded in 1875–80; thermo- + -phone

Words nearby thermophone

thermoperiodic, thermoperiodicity, thermoperiodism, thermophile, thermophilic, thermophone, thermophore, thermophosphorescence, thermophylic, thermopile, thermoplacentography
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
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更新时间:2024/9/22 12:57:02