What is the meaning of Velum?

a thin membrane resembling a veil or curtain, such as:

  1. the soft palate
  2. a thin membrane partially covering the cluster of sporangia near the leaf base in quillworts and their extinct relatives
  3. 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
  4. a locomotory and feeding organ provided with cilia found in the larval stage of bivalves
  5. a annular membrane, typically bordering a cavity, especially in certain molluscs, medusae, and other invertebrates
  6. a delicate membrane found on certain protists

the soft palate

a thin membrane partially covering the cluster of sporangia near the leaf base in quillworts and their extinct relatives

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 locomotory and feeding organ provided with cilia found in the larval stage of bivalves

a annular membrane, typically bordering a cavity, especially in certain molluscs, medusae, and other invertebrates

a delicate membrane found on certain protists

an accessory cloud resembling a veil extending over a large distance; normally associated with cumulus and cumulonimbus

indefinite dative plural of vel

velum

velum: the soft palate.

veil: a covering for a person or thing; as, a caul.

vellum: a type of parchment paper made from the skin of a lamb, baby goat, or calf.

a cloth, covering, curtain, veil, awning

the sail of a ship

the soft palate

Source: wiktionary.org