from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Having or formed of two sides; two-sided.
  • adj. Affecting or undertaken by two sides equally; binding on both parties: a bilateral agreement; bilateral negotiations.
  • adj. Relating to the right and left sides of the body or of a body structure.
  • adj. Having or marked by bilateral symmetry.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. having two sides
  • adj. involving both sides equally
  • adj. binding on both parties to an agreement
  • adj. having bilateral symmetry
  • adj. involving descent or ascent regardless of sex and side of the family

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having two sides; arranged upon two sides; affecting two sides or two parties.
  • adj. Of or pertaining to the two sides of a central area or organ, or of a central axis.

from The Century Dictionary and Cyclopedia

  • Having two sides; of or pertaining to two sides; two-sided.
  • In botany, having the sides different.
  • In biology, having the sides symmetrical.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. having two sides or parts
  • adj. affecting or undertaken by two parties
  • adj. having identical parts on each side of an axis


Sorry, no etymologies found.



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