Velum

·noun ·see Veil, ·noun, 3 (b).

II. Velum ·noun A veil-like organ or part.

III. Velum ·noun A thin membrane surrounding the sporocarps of quillworts Isoetes).

IV. Velum ·noun The circular membrane that partially incloses the space beneath the umbrella of hydroid medusae.

V. Velum ·noun A delicate funnel-like membrane around the flagellum of certain Infusoria. ·see ·Illust. a of Protozoa.

VI. Velum ·noun Curtain or covering;

— applied to various membranous partitions, especially to the soft palate. ·see under Palate.