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acoustic mirror
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1
English
1.1
Noun
1.1.1
Synonyms
1.2
See also
English
edit
three
acoustic mirrors
Noun
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acoustic
mirror
(
plural
acoustic mirrors
)
A
passive
device for reflecting and often
focusing
sound
waves, chiefly used to provide early warning of incoming aircraft (by detecting the sound of their engines).
Synonyms
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sound mirror
See also
edit
war tuba
parabolic microphone
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English lemmas
English nouns
English countable nouns
English multiword terms
en:Sound
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