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astatine
Definitions
[ˈastətiːn], (Noun)
Definitions:
- 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
Phrases:
Origin
:
1940s: from Greek astatos ‘unstable’ + -ine
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definition by Oxford Dictionaries