- 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. 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. 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..
* * *a) SOFT PALATEb) SEMILUNAR CUSP
* * *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.
* * *ve·lum (veґləm) pl. veґla [L.] a veil or veillike structure.
Medical dictionary. 2011.