Someone who shares in the parenting of a child or children, such as
A godparent.
A divorced or separated parent who shares custody with the other parent.
A parent in a same-sex couple.
To act as a co-parent; to share custody of a child or children; to share in the responsibility of parenting a child or children.
A person related through the mother, or her side of the family; a maternal relative.
Derived from the mother as opposed to the foetus during pregnancy.
Of or pertaining to a mother; having the characteristics of a mother; motherly.
Related through the mother, or her side of the family.