old–man's beard

noun \ˈōl(d)-ˈmanz-\

Definition of OLD-MAN'S BEARD

:  any of several clematises (especially Clematis vitalba) having plumose styles
:  a greenish-gray pendulous lichen (Usnea barbata) growing on trees

First Known Use of OLD-MAN'S BEARD


Rhymes with OLD-MAN'S BEARD

Medical Dictionary

old–man's beard

noun \ˌōl(d)-ˌmanz-\

Medical Definition of OLD–MAN'S BEARD

:  a greenish gray pendulous lichen of the genus Usnea (U. barbata) that grows on trees and is a source of usnic acid


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