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superstring

[soo-per-string]
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noun Physics.
  1. an elementary particle treated as a string in any string theory of supersymmetry.

Origin of superstring

superstring theory

[soo-per-string]
noun
  1. any supersymmetric string theory in which each type of elementary particle is treated as a vibration of a single fundamental string (superstring) at a particular frequency.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for superstring

superstring

noun
  1. physics a type of one-dimensional entity postulated in certain theories of elementary particles that involve supersymmetry
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

superstring in Science

superstring theory

[sōōpər-strĭng′]
  1. A type of string theory that includes the theoretical assumptions of supersymmetry.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.