Fluttering

noun, verb

Definitions

Noun
  1. 1
    Rapid back-and-forth waving or oscillation.

    "It is indubitably certain, therefore, that he is able to attend, and actually attends, to all things at the same moment; to the motions of a seed, or a leaf, or an atom; to the creepings of a worm, the flutterings of an insect, and the journeys of a mite […]"

  2. 2
    the motion made by flapping up and down wordnet
Verb
  1. 1
    present participle and gerund of flutter form-of, gerund, participle, present

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