noun, symbol, slang ·Moderate ·College level

Definitions

Noun

1. 1
   Initialism of galley yarn. abbreviation, alt-of, initialism, obsolete, slang
2. 2
   the SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad wordnet
3. 3
   Initialism of galactic year. abbreviation, alt-of, initialism

Symbol

1. 1
   Symbol for gray(s), a unit of absorbed dose. alt-of, symbol
2. 2
   Alternative form of Gyr (“gigayear(s)”). alt-of, alternative

Synonyms

All synonyms

gagalley yarngray

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.