Meaning of metronymic

me•tro•nym•ic

Pronunciation: (mē"tru-nim'ik, me"-), [key]
— adj.
  1. derived from the name of a mother or other female ancestor.
—n.
  1. a metronymic name.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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