ras
ras
noun, often attrib \ˈras\Definition of RAS
: 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) <ras oncogenes> <ras proteins>
Origin of RAS
rat sarcoma
Learn More About
Seen & Heard 
What made you want to look up ras? Please tell us where you read or heard it (including the quote, if possible).
