DICT.TW Dictionary Taiwan

 U·ni·lat·er·al a.
 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.
 Unilateral contract Law, a contract or engagement requiring future action only by one party.
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 unilateral contract
      n : a one-sided agreement whereby you promise to do (or refrain
          from doing) something in return for a performance (not a
          promise)