• (botany) A thin membrane partially covering the cluster of sporangia near the leaf base in quillworts and their extinct relatives.
  • (zoology) A circular membrane round the cap of medusa.
  • (anatomy) The soft palate.
  • (malacology) A locomotory and feeding organ provided with cilia found in the larval stage of bivalves.
  • (meteorology) An accessory cloud resembling a veil extending over a large distance. Normally associated with cumulus and cumulonimbus.
  • A thin membrane, resembling a veil, such as:
  • (mycology) A veil-like membrane of immature mushrooms extending from the margin of the cap to the stem and is torn by growth, to reveal the gills.
  • A delicate membrane found on certain protists.

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