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noun Velum n. (pl. vela) 1.(Anat.) A curtain or covering; applied to various membranous partitions, especially to the soft palate. See under Palate. 2.(Bot.) (b)A thin membrane surrounding the sporocarps of quillworts Isoetes). 3.(Zool.) A veil-like organ or part. Especially: (a)The circular membrane that partially incloses the space beneath the umbrella of hydroid medusae. (b)A delicate funnel-like membrane around the flagellum of certain Infusoria.
Collaborative International Dictionary of English 0.48
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