unilateral descent

English Thesaurus

1. line of descent traced through one side of the family (noun.linkdef)

hypernym	:	descent, filiation, line of descent, lineage,
definition	:	the kinship relation between an individual and the individual's progenitors (noun.linkdef)

hyponym	:	cognation, enation, matrilineage,
definition	:	line of descent traced through the maternal side of the family (noun.linkdef)

hyponym	:	agnation, patrilineage,
definition	:	line of descent traced through the paternal side of the family (noun.linkdef)