velamen

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velamen

 [ve-la´men] (L.)
a covering structure; see veil and velum.

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]

velamen

/ve·la·men/ (ve-la´men) pl. vela´mina   [L.] a membrane, meninx, or velum.

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.

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]

velamen

a layer of dead cells, acting as water-absorbing spongy material, found on the outside of aerial roots of epiphytic plants.

velamen

pl. velamina [L.] a membrane, meninx or velum.