unilateral Meaning, Definition & Usage

  1. adjective involving only one part or side
    one-sided.
    • unilateral paralysis
    • a unilateral decision
  2. adjective satellite tracing descent from either the paternal or the maternal line only

WordNet

U`ni*lat"er*al adjective
Etymology
Uni- + lateral: cf. F. unilatéral.
Definitions
  1. Being on one side only; affecting but one side; one-sided.
  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.

Webster 1913