Biol. a short, sharp point, tip, or process projecting abruptly from certain parts and organs, as at the end of a leaf
Origin of mucroModern Latin from L, sharp point from Indo-European base an unverified form meuk-, to scratch from source Classical Greek amych?, a scratch
A sharp, pointed part or organ, especially a sharp terminal point, as of a leaf or shell.
Origin of mucroLatin mūcrō mūcrōn- sharp point