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velum n. 盖膜,软口盖,菌膜,膜,缘膜 盖膜,软口盖,菌膜,膜,缘膜 velum n 1: a membranous covering attached to the immature fruiting body of certain mushrooms [ synonym: { veil}, { velum}] 2: a muscular flap that closes off the nasopharynx during swallowing or speaking [ synonym: { soft palate}, { velum}] Veil \ Veil\ ( v[= a] l), n. [ OE. veile, OF. veile, F. voile, L. velum a sail, covering, curtain, veil, probably fr. vehere to bear, carry, and thus originally, that which bears the ship on. See { Vehicle}, and cf. { Reveal}.] [ Written also { vail}.] [ 1913 Webster] 1. Something hung up, or spread out, to intercept the view, and hide an object; a cover; a curtain; esp., a screen, usually of gauze, crape, or similar diaphnous material, to hide or protect the face. [ 1913 Webster] The veil of the temple was rent in twain. -- Matt. xxvii. 51. [ 1913 Webster] She, as a veil down to the slender waist, Her unadorn[' e] d golden tresses wore. -- Milton. [ 1913 Webster] 2. A cover; a disguise; a mask; a pretense. [ 1913 Webster] [ I will] pluck the borrowed veil of modesty from the so seeming Mistress Page. -- Shak. [ 1913 Webster] 3. ( Bot.) ( a) The calyptra of mosses. ( b) A membrane connecting the margin of the pileus of a mushroom with the stalk; -- called also { velum}. [ 1913 Webster] 4. ( Eccl.) A covering for a person or thing; as, a nun' s veil; a paten veil; an altar veil. [ 1913 Webster] 5. ( Zool.) Same as { Velum}, 3. [ 1913 Webster] { To take the veil} ( Eccl.), to receive or be covered with, a veil, as a nun, in token of retirement from the world; to become a nun. [ 1913 Webster]
Velum \ Ve" lum\, n.; pl. { Vela}. [ L., an awning, a veil. See { Veil}.] [ 1913 Webster] 1. ( Anat.) A curtain or covering; -- applied to various membranous partitions, especially to the soft palate. See under { Palate}. [ 1913 Webster] 2. ( Bot.) ( a) See { Veil}, n., 3 ( b) . ( b) A thin membrane surrounding the sporocarps of quillworts { Isoetes}). [ 1913 Webster] 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. See Illust. a of { Protozoa}. [ 1913 Webster]
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