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English noun: atomic number 1

1. atomic number 1 (substance) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe


SynonymsH, hydrogen


Broader (hypernym)chemical element, element, gas


Narrower (hyponym)tritium


Substance meronymH2O, water









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