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megadecibel
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Contents
1
English
1.1
Etymology
1.2
Noun
1.2.1
Usage notes
English
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Etymology
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mega-
+
decibel
Noun
edit
megadecibel
(
plural
megadecibels
)
A measure of
sound
intensity
, one
million
decibels
.
Usage notes
edit
Generally used informally as an exaggerated description of a very loud sound.