Back
English Dictionary
Learn English
Learn grammar
List of words
Study your cards
Hang On, Man!
Audio Books
More apps
SPONSORED LINKS
Recent searches
holdover
vulgar
acrocentric chromosome
SPONSORED LINKS
SPONSORED LINKS
xyst
abkhazia
manduca quinquemaculata
witherspoon
frustration
accounting principle
devoted
Hide translation
actinide
actinide
/ˈækˈtɪnˌaɪd/
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
Back
Next
Language