Subscriber login


Forgot your password?

Library card login

Other

astatine

Syllabification: (as·ta·tine)
Definition of astatine

noun

  • the chemical element of atomic number 85, a radioactive member of the halogen group. Astatine was first produced by bombarding bismuth with alpha particles, and it occurs in traces in nature as a decay product. (Symbol: At)

Origin:

1940s: from Greek astatos 'unstable' + -ine4

astatine in other Oxford dictionaries

Definition of astatine in the British & World English dictionary
  |  Cite

Word of the day

offing

/ ˈôfiNG /
noun
the more distant part of the sea in view …