Term: astatine: a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
Candidate hypernym: chemical element: any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter → 1
Candidate hypernym: existentialist: a philosopher who emphasizes freedom of choice and personal responsibility but who regards human existence in a hostile universe as unexplainable → 0
Candidate hypernym: phase: (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun) → 0
Candidate hypernym: lacerta: type genus of the Lacertidae → 0
Candidate hypernym: gadgetry: appliances collectively → 0
Candidate hypernym: cartridge paper: paper for making cartridge cases → 0
Candidate hypernym: protoctista: in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals → 0
Candidate hypernym: jeroboam: a large wine bottle (holds 4/5 of a gallon) → 0
Candidate hypernym: founding father: a member of the Constitutional Convention that drafted the United States Constitution in 1787 → 0
Candidate hypernym: nonce word: a word with a special meaning used for a special occasion → 0
Candidate hypernym: nonacceptance: the act of refusing an offer → 0