- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
lingo
-
pentagon
-
admonish
-
dope
-
rhetorical
-
atherogenesis
-
accessory hemiazygos vein
-
accounting firm
-
slayer
-
velveteen
- 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