- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
abecedarian
-
wrote
-
errant
-
achira
-
adam's needle-and-thread
-
disciple
-
tap into
-
eternal rest
-
asphyxiated
-
fringes
- 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.
