Meaning of RAS in English

Pronunciation: ' ras

Function: noun

Usage: often attrib

Etymology: probably from 1 ra t + s arcoma; from the isolation of such genes in rat sarcomas

Date: 1982

: any of a family of genes that undergo mutation to oncogenes and especially to some commonly linked to human cancers (as of the colon, lung, and pancreas)

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.