- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
accelerator pedal
-
apprenticed
-
pugnaciousness
-
workbench
-
any
-
acaulescent
-
binge
-
absorption band
-
bit-by-bit
-
hardly
- Hide translation
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.
