Definition of velamen
: the thick corky epidermis of aerial roots of an epiphytic orchid that absorbs water from the atmosphere
Origin and Etymology of velamen
short for New Latin vēlāmen rādicum, literally, “covering of the roots”; Latin vēlāmen “covering,” from vēlāre “to cover, clothe” (verbal derivative of vēlum “awning, curtain”) + -men, suffix of result — more at 1veil
First Known Use: 1882
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