1.
[syn: unilateral, one-sided]
2. tracing descent from either the paternal or the maternal line only;
The Collaborative International Dictionary of English v.0.48:
Unilateral \U`ni*lat"er*al\, a. [Uni- + lateral: cf. F.
unilat['e]ral.]
1. Being on one side only; affecting but one side; one-sided.
[1913 Webster]
2. (Biol.) Pertaining to one side; one-sided; as, a
unilateral raceme, in which the flowers grow only on one
side of a common axis, or are all turned to one side.
[1913 Webster]
Unilateral contract (Law), a contract or engagement
requiring future action only by one party.
[1913 Webster]
WordNet (r) 3.0 (2006):
unilateral
adj 1: involving only one part or side; "unilateral paralysis";
"a unilateral decision" [syn: unilateral, one-sided]
[ant: many-sided, multilateral]
2: tracing descent from either the paternal or the maternal line
only