- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
boobs
-
adult tooth
-
disinflation
-
geddit
-
ene
-
crisis
-
hook
-
advertisement
-
sweetly
-
mandrillus leucophaeus
- 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