protective fold

Definitions of protective fold
  1. noun
    a flap of tissue that protects what it covers
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    types:
    eyelid, lid, palpebra
    either of two folds of skin that can be moved to cover or open the eye
    nictitating membrane, third eyelid
    a protective fold of skin in the eyes of reptiles and birds and some mammals
    haw
    the nictitating membrane of a horse
    type of:
    flap
    a movable piece of tissue partly connected to the body
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