unilateral descent vs descent

unilateral descent and descent both are nouns.

Word	Noun	Adjective	Verb	Adverb
unilateral descent	Yes	No	No	No
descent	Yes	No	No	No

As nouns, descent is a hypernym of unilateral descent; that is, descent is a word with a broader meaning than unilateral descent:

unilateral descent: line of descent traced through one side of the family
descent: the kinship relation between an individual and the individual's progenitors

Other hypernyms of unilateral descent include filiation, line of descent, lineage.

unilateral descent (noun)	descent (noun)
line of descent traced through one side of the family	the act of changing your location in a downward direction
	properties attributable to your ancestry
	a movement downward
	the hereditary derivation of an individual
	a downward slope or bend
	the kinship relation between an individual and the individual's progenitors