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

  • n. Any of numerous very long and thin alterations or topological defects in space hypothesized to have resulted from the Big Bang and to have made possible the conglomeration of mass into structures such as galaxies and the unequal distribution of mass in the universe.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A cosmically-scaled string of mass-energy left over from the big bang as a topological defect in spacetime.

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

  • n. (cosmology) a hypothetical one-dimensional subatomic particle having a concentration of energy and the dynamic properties of a flexible loop


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