Dictionary

usnea

noun us·nea \ˈəs-nē-ə, ˈəz-\

Definition of USNEA

:  any of a genus (Usnea of the family Usneaceae) of widely distributed lichens (as old-man's beard) that have a grayish or yellow pendulous freely branched thallus
ADVERTISEMENT

Origin of USNEA

New Latin, from Arabic ushna moss
First Known Use: 1597

Browse

Next Word in the Dictionary: UsneaceaePrevious Word in the Dictionary: USNAll Words Near: usnea
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears