velum

velum
1. Any structure resembling a veil or curtain. SYN: veil (1), velamen, velamentum. 2. SYN: caul (1). 3. SYN: greater omentum. 4. Any serous membrane or membranous envelope or covering. [L. veil, sail]
- inferior medullary v. [TA] a thin sheet of white matter, hidden by the cerebellar tonsil, attached along the peduncle of the flocculus and, at or near the midline, to the nodulus of the vermis; it is continuous caudally with the epithelial lamina and choroid plexus of the fourth ventricle. SYN: v. medullare inferius [TA], posterior medullary v., Tarin valve, valvula semilunaris tarini, v. semilunare, v. tarini.
- v. interpositum SYN: tela choroidea of third ventricle.
- v. medullare inferius [TA] SYN: inferior medullary v..
- v. medullare superius [TA] SYN: superior medullary v..
- v. palatinum soft palate.
- v. pendulum palati SYN: soft palate.
- superior medullary v. [TA] the thin layer of white matter stretching between the two superior cerebellar peduncles, forming the roof of the superior recess of the fourth ventricle. SYN: v. medullare superius [TA], anterior medullary v., Vieussens valve.
- v. tarini SYN: inferior medullary v..
- v. terminale SYN: lamina terminalis of cerebrum.
- transverse v. a fold in the dorsal wall of the embryonic brain at the boundary between the telencephalon and diencephalon. SYN: v. transversum.
- v. transversum SYN: transverse v..
- v. triangulare SYN: tela choroidea of third ventricle.

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ve·lum 'vē-ləm n, pl ve·la -lə a membrane or membranous part resembling a veil or curtain: as
a) SOFT PALATE
b) SEMILUNAR CUSP

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n.
(in anatomy) a veil-like covering. The medullary velum is either of two thin layers of tissue that form part of the roof of the fourth ventricle of the brain.

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ve·lum (veґləm) pl. veґla [L.] a veil or veillike structure.

Medical dictionary. 2011.

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Look at other dictionaries:

  • velum — velum …   Dictionnaire des rimes

  • vélum — vélum …   Dictionnaire des rimes

  • vélum — ou velum [ velɔm ] n. m. • 1872; lat. velum « voile » ♦ Grande pièce d étoffe servant à tamiser la lumière ou à couvrir un espace sans toiture. « Le velum de toile, tendu sous les vitres du plafond, tamisait le soleil » (Zola). Des vélums. ●… …   Encyclopédie Universelle

  • velum — vélum ou velum [ velɔm ] n. m. • 1872; lat. velum « voile » ♦ Grande pièce d étoffe servant à tamiser la lumière ou à couvrir un espace sans toiture. « Le velum de toile, tendu sous les vitres du plafond, tamisait le soleil » (Zola). Des vélums.… …   Encyclopédie Universelle

  • velum — VÉLUM s.n. 1. Pânză mare care acoperă un circ, o barcă. v. velarium. 2. (zool.) Formaţie sau structură membranoasă asemănătoare unui văl, prezentă la meduze, unele larve etc., în apropierea cavităţii bucale. [< lat. velum]. Trimis de… …   Dicționar Român

  • velum — vȅlum m DEFINICIJA anat. 1. stražnje, meko nepce 2. meteor. pridruženi oblak: to je sloj niskog ili srednjeg slojastog oblaka u obliku prostranog vela kad ga probiju oblaci vertikalnog razvoja 3. crkv. pokrivač preko ramena što ga nosi svećenik… …   Hrvatski jezični portal

  • velum — 1771, from L. velum “a sail, awning, curtain, covering” (see VEIL (Cf. veil)) …   Etymology dictionary

  • Velum — Ve lum, n.; pl. {Vela}. [L., an awning, a veil. See {Veil}.] [1913 Webster] 1. (Anat.) Curtain or covering; applied to various membranous partitions, especially to the soft palate. See under {Palate}. [1913 Webster] 2. (Bot.) (a) See {Veil}, n.,… …   The Collaborative International Dictionary of English

  • Velum — (lat.), 1) Schleier, s.d.; 2) so v.w. Schleier der Pilze; 3) V. palatīnum, Gaumenvorhang, s.u. Gaumen …   Pierer's Universal-Lexikon

  • Velum [1] — Velum (lat., »Segel«), das Wimpersegel der Schnecken (s. d., S. 916); auch der muskulöse Randsaum der Hydromedusen (s. d.); V. palatīnum, das Gaumensegel (s. Gaumen) …   Meyers Großes Konversations-Lexikon

  • Velum [2] — Velum (lat., »Schleier«), in der katholischen Kirche ein quadratisches verziertes Seidentuch zur Verhüllung des Kelches bis zum Offertorium und nach der Kommunion bei der Messe; auch ein längerer, halbmeterbreiter verzierter Streifen aus weißer… …   Meyers Großes Konversations-Lexikon

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