Definitions for velumˈvi ləm; -lə
Random House Webster's College Dictionary
ve•lumˈvi ləm; -lə(n.)(pl.)-la
Biol. any of various veillike or curtainlike membranous partitions.
the soft palate.
Ref: See under palate (def. 1). 1
the frontal ciliated swimming organ of gastropod larvae.
Origin of velum:
1765–75; < L vēlum sail, covering
a membranous covering attached to the immature fruiting body of certain mushrooms
soft palate, velum(noun)
a muscular flap that closes off the nasopharynx during swallowing or speaking
A thin membrane, resembling a veil, such as:
an accessory cloud resembling a veil extending over a large distance. Normally associated with cumulus and cumulonimbus.
curtain or covering; -- applied to various membranous partitions, especially to the soft palate. See under Palate
see Veil, n., 3 (b)
a thin membrane surrounding the sporocarps of quillworts Isoetes)
a veil-like organ or part
the circular membrane that partially incloses the space beneath the umbrella of hydroid medusae
a delicate funnel-like membrane around the flagellum of certain Infusoria. See Illust. a of Protozoa