transcription, транскрипция: [ ˌpī-rō-ˈga-ˌlȯl, -ˌlōl; -ˈgȯ- ]
noun
Etymology: International Scientific Vocabulary pyro- + gall ic (acid) + -ol (I)
Date: 1869
: a poisonous bitter crystalline phenol C 6 H 6 O 3 with weak acid properties that is usually obtained by pyrolysis of gallic acid and used especially as a mild reducing agent (as in photographic developing)