saltation


Concise Oxford English Dictionary © 2008 Oxford University Press:
saltation /salˈteɪʃ(ə)n, sɔː-, sɒ-/
noun
  • 1 Biology abrupt evolutionary change; sudden large-scale mutation.
  • 2 Geology the transport of hard particles over an uneven surface in a turbulent flow of air or water.
  • 3 archaic the action of leaping or dancing.
– derivatives
saltatory /ˈsaltət(ə)ri, ˈsɔː-, ˈsɒ-/ adjective.
– origin C17 (in sense 3): from L. saltatio(n-), from saltare ‘to dance’, frequentative of salire ‘to leap’.
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