from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Twofold.
  • adjective Of or relating to a dyad.
  • noun The sum of a finite number of dyads.

from The Century Dictionary.

  • Pertaining or relating to the number two, or to a dyad; consisting of two parts or elements: as, a dyadic metal.
  • In Gr. pros.:
  • Comprising two different rhythms or meters: as, a dyadic epiploce.
  • Consisting of pericopes, or groups of systems each of which contains two unlike systems: as, a dyadic poem.
  • Also dyad, duadic.
  • noun In mathematics, a sum of dyads.
  • noun The science of reckoning with a system of numerals in which the ratio of values of successive places is two.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Pertaining to the number two; of two parts or elements.
  • adjective the same as binary arithmetic.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Pertaining to the number two; of two parts or elements.

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

  • adjective of or relating to a dyad or based on two


Sorry, no etymologies found.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.


    What tf is perisex

    It’s one of the words proposed by the intersex community to refer to someone who isn’t intersex, much like cis refers to someone who isn’t trans.

    The other words I’ve seen around are endosex and dyadic, and they all seem to have pros and cons and there’s not been a great deal of consensus about what word would work best.

    April 25, 2017