- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
spectacles
-
acrimoniously
-
larvae
-
shrapnel
-
manat
-
complexity
-
odoriferous
-
absit omen
-
actias
-
bisexual
- Hide translation
acorn tube
acorn tube /ˈeɪˌkɔrn tuːb/
noun
-
A small vacuum tube; used at high frequencies
(
acorn tube
)
a small vacuum tube; used at high frequencies