See more synonyms for strangeness on
  1. the quality or condition of being strange.
  2. Physics. a quantum number assigned the value −1 for one kind of quark, +1 for its antiquark, and 0 for all other quarks; the strangeness of a hadron is the sum of the values for the strangeness of its constituent quarks and antiquarks. Symbol: S
Compare strange quark.

Origin of strangeness

Middle English word dating back to 1350–1400; see origin at strange, -ness Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for strangeness

Contemporary Examples of strangeness

Historical Examples of strangeness

  • All that surrounds him—all that belongs to him, is strangeness and mystery!

    Night and Morning, Complete

    Edward Bulwer-Lytton

  • But the strangeness and wonder were under the long eyelids, and in the woman's hands.

    It Happened in Egypt

    C. N. Williamson

  • The strangeness of his answering voice only repeated the stab of fear.

  • His voice had a mumbling quality and I noticed the strangeness in his eyes.

    The Harbor

    Ernest Poole

  • I went back to Flavia and Sapt, pondering on the strangeness of the man.

British Dictionary definitions for strangeness


  1. the state or quality of being strange
  2. physics a property of certain elementary particles, characterized by a quantum number (strangeness number) conserved in strong and electromagnetic but not in weak interactions. It is associated with the presence of strange quarks
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

strangeness in Science


  1. The property of containing a strange quark or antiquark. Strangeness is expressed in terms of an integer quantum number, -1 for each strange quark and +1 for each strange antiquark. Hadrons that possess strangeness are called strange. The total strangeness of a quantum system is unchanged by decay processes involving the strong or electromagnetic forces; however, decay through the weak force can change the total strangeness of the system. See also baryon number isospin.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.