adj. Of, relating to, or derived from the given name of one's mother or a female ancestor.
n. A surname or byname acquired from the given name of one's mother's or from a female ancestor's given name.
the GNU version of the Collaborative International Dictionary of English
n. See metronymic.
The Century Dictionary and Cyclopedia
Pertaining to or being a name derived from a mother or maternal ancestor.
n. A name derived from a mother or maternal ancestor: correlative to patronymic.
n. A word of a form used for matronymic designation; a matronymic formation.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a name derived from the name of your mother or a maternal ancestor
Word Usage
"The “Kuniyah,” bye-name, patronymic or matronymic, is necessary amongst Moslems whose list of names, all connected more or less with religion, is so scanty."