velamen


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velamen

 [ve-la´men] (L.)
a covering structure; see veil and velum.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ve·lum

, pl.

ve·la

(vē'lŭm, -lă),
1. Any structure resembling a veil or curtain. Synonym(s): veil (1) , velamen, velamentum
2. Synonym(s): caul (1)
3. Synonym(s): greater omentum
4. Any serous membrane or membranous envelope or covering.
[L. veil, sail]
Farlex Partner Medical Dictionary © Farlex 2012

velamen

(və-lā′mən)
n. pl. ve·lamina (-lăm′ə-nə)
1. Anatomy A membranous covering or partition; velum.
2. Botany A spongy layer of dead cells that covers the aerial roots of most orchids and certain other plants and may serve to absorb atmospheric moisture.

vel′a·men′tous (vĕl′ə-mĕn′təs) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ve·lum

, pl. vela (vē'lŭm, -lă)
1. Any structure resembling a veil or curtain.
Synonym(s): veil (1) , velamen.
2. Synonym(s): caul (1) .
3. Synonym(s): greater omentum.
4. Any serous membrane or membranous envelope or covering.
[L. veil, sail]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

velamen

a layer of dead cells, acting as water-absorbing spongy material, found on the outside of aerial roots of epiphytic plants.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
secundum dealt with plants cultivated in greenhouse conditions, and described roots with five-six layered velamen, exodermal cells with wall thickenings, 10-12 layered cortex, O-thickened endodermis, and 17 protoxylem poles.
TRANVIAS Con el fusil al hombro los tranvias patrullan las avenidas Presa del imperial bajo el velamen cielos de balcones y fachadas 5 verticales cual gritos Carteles aclamatorios ejecutan su prestigioso salto mortal desde arriba.
de longitud, diametro de 3 a 4.31 mm, velamen blanco, cofia verde.
Appendix Comparison of the Roman Missals of 1962, 1970, and 2008 1962 Forma ordinaria 1962 Forma ordinaria Oremus et pro ludceis: ut Deus Let us pray also for the Jews: et Dominus noster auferat that almighty God may remove velamen de cordibus eorum; ut the veil from their hearts; so et ipsi agnoscant Iesum that they too may acknowledge Christum Dominum nostrum.
En seccion transversal se distingue un velamen de 3 capas de grosor en P.