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velamen

[ vuh-ley-min ]

noun

, plural ve·lam·i·na [v, uh, -, lam, -, uh, -n, uh].
  1. Anatomy. a membranous covering; velum.
  2. Botany. the thick, spongy integument or epidermis covering the aerial roots of epiphytic orchids.


velamen

/ vəˈleɪmɛn /

noun

  1. the thick layer of dead cells that covers the aerial roots of certain orchids and aroids and absorbs moisture from the surroundings
  2. anatomy another word for velum
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of velamen1

1880–85; < Latin vēlāmen, equivalent to vēlā ( re ) to cover + -men noun suffix of result
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Word History and Origins

Origin of velamen1

C19: from Latin: a veil, from vēlāre to cover

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velavelar