Astatine
nounverified·updated May 18, 2026
a highly unstable radioactive element (the heaviest of the halogen series)
Framework senses
- §1
- a highly unstable radioactive element (the heaviest of the halogen series)
- §1 · legacy_primary
- a highly unstable radioactive element (the heaviest of the halogen series)DR-088 backfill from the noun definition column