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ras

noun, often attributive
\ ˈras How to pronounce ras (audio) \

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)

First Known Use of ras

1982, in the meaning defined above

History and Etymology for ras

ra(t) entry 1 + s(arcoma); from the initial isolation of such genes in rat sarcomas

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More Definitions for ras

ras

noun, often attributive
\ ˈras How to pronounce ras (audio) \

Medical 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

History and Etymology for ras

rat sarcoma

More from Merriam-Webster on ras

Spanish Central: Translation of ras

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