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单词 velamen
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ve•la•men  (və lā′min),USA pronunciation n., pl. -lam•i•na 
    (-lam′ə nə).USA pronunciation 
  1. [Anat.]a membranous covering;
    velum.
  2. [Bot.]the thick, spongy integument or epidermis covering the aerial roots of epiphytic orchids.
  • Latin vēlāmen, equivalent. to vēlā(re) to cover + -men noun, nominal suffix of result
  • 1880–85

Collins Concise English Dictionary © HarperCollins Publishers::
velamen /vəˈleɪmɛn/ n ( pl -lamina / -ˈlæmɪnə/)
  1. the thick layer of dead cells that covers the aerial roots of certain orchids and aroids and absorbs moisture from the surroundings
  2. another word for velum
Etymology: 19th Century: from Latin: a veil, from vēlāre to cover
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