pistonphone
nounEtymology From piston + -phone.
1
An acoustic calibrator based on a piston pushing on a fixed volume of air.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
Etymology From piston + -phone.
An acoustic calibrator based on a piston pushing on a fixed volume of air.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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