transcription, транскрипция: [ (ˌ)ər-ˈgäs-tə-ˌrȯl, -ˌrōl ]
noun
Etymology: International Scientific Vocabulary
Date: 1906
: a crystalline steroid alcohol C 28 H 44 O that occurs especially in yeast, molds, and ergot and is converted by ultraviolet irradiation ultimately into vitamin D 2