uracil Hear it!

uracil definition

ura·cil (yo̵or′ə sil′)

noun

a colorless, crystalline, pyrimidine base, CHNO, that occurs as a constituent of RNA

Etymology: ur(o)- + ac(etic) + -il

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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