Back
English Dictionary
Learn English
Learn grammar
List of words
Study your cards
Hang On, Man!
Audio Books
More apps
SPONSORED LINKS
Recent searches
masculine
academic freedom
occur
SPONSORED LINKS
SPONSORED LINKS
paradox
action at law
nations
europe
wonk
truant
alligators
Hide translation
actinium
actinium
/ækˈtɪnɪəm/
noun
A radioactive element of the actinide series; found in uranium ores
(
Ac
,
actinium
,
atomic number 89
)
a radioactive element of the actinide series; found in uranium ores
Back
Next
Language