- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
richler
-
judiciary
-
exposition
-
meantime
-
napoleon bonaparte
-
acrylic fiber
-
occasion
-
asphyxiated
-
exhilarated
-
feigned
- 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