- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
labor-saving
-
aaron
-
irresistibly
-
snubbing
-
atherogenesis
-
chirography
-
provisional
-
particular
-
modicum
-
acid dye
- 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