Word:   
Definitions of velum:
  • noun:   a muscular flap that closes off the nasopharynx during swallowing or speaking
  • noun:   membrane initially completely investing the young sporophore of various mushrooms that is ruptured by growth; represented in the mature mushroom by a volva around lower part of stem and scales on upper surface of the cap
  • noun:   membrane of the young sporophore of various mushrooms extending from the margin of the cap to the stem and is ruptured by growth; represented in mature mushroom by an annulus around the stem and sometimes a cortina on the margin of the cap

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See velum used in context: several books and articles.

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