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Meaning of velamen

ve•la•men

Pronunciation: (vu-lā'min), [key]
— pl. -lam•i•na
  1. a membranous covering; velum.
  2. the thick, spongy integument or epidermis covering the aerial roots of epiphytic orchids.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.