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boidae
abkhazian language
aconitum lycoctonum
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subordinate
household
ending
1st
phlegmatic
indemnity
actifed
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acoustic device
acoustic device
/əˈkuːstɪk dɪˈvaɪs/
noun
A device for amplifying or transmitting sound
(
acoustic device
)
a device for amplifying or transmitting sound
The hall was fitted with an acoustic device to improve sound quality.
The hall was fitted with an acoustic device to improve sound quality.
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