- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
cab
-
enslave
-
villain
-
high status
-
activating
-
japanese
-
classroom
-
confessedly
-
mothers
-
action at law
- Hide translation
actinon
actinon /ˈækˌtɪnɒn/
noun
-
Any of a series of radioactive elements with atomic numbers 89 through 103
(
actinide
, actinoid
, actinon
)
any of a series of radioactive elements with atomic numbers 89 through 103