thermophone

[ thur-muh-fohn ]

/ ˈθɜr məˌfoʊn /

Save This Word!

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.

QUIZ

ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?

We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.

Question 1 of 8

Which of the following words describes “sky blue”?

navy

beryl

azure

TAKE THE QUIZ TO FIND OUT

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar help

Improve Your Writing

Meet Grammar CoachImprove Your Writing

Origin of thermophone

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

Words nearby thermophone

thermoperiodic, thermoperiodicity, thermoperiodism, thermophile, thermophilic, thermophone, thermophore, thermophosphorescence, thermophylic, thermopile, thermoplacentography