saltation

saltation
[salˈteɪʃ(ə)n, sɔː-, sɒ-]
noun
[mass noun]
  1. (Biology)abrupt evolutionary change; sudden large-scale mutation
    (生)突变
  2. (Geology)the transport of hard particles over an uneven surface in a turbulent flow of air or water
    (地质)跃移
  3. (archaic)the action of leaping or dancing
    (古)跳跃,跳动;跳舞
派生
saltatory
[ˈsaltət(ə)ri, ˈsɔː-, ˈsɒ-]
adjective
语源
  1. early 17th cent. (in sense 3): from Latin saltatio(n-), from saltare 'to dance', frequentative of salire 'to leap'
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