Definitions for usneaˈʌs ni ə
Random House Webster's College Dictionary
us•ne•aˈʌs ni ə(n.)(pl.)-ne•as.
any pale green or gray, mosslike lichen of the genus Usnea, common on rocks and trees.
Origin of usnea:
1590–1600; < NL, ML < Ar or Pers ushnah
Usnea, genus Usnea(noun)
widely distributed lichens usually having a greyish or yellow pendulous freely branched thallus
A lichen of the genus Usnea.
Origin: From أشنة.
a genus of lichens, most of the species of which have long, gray, pendulous, and finely branched fronds. Usnea barbata is the common bearded lichen which grows on branches of trees in northern forests
U.S. National Library of Medicine
A genus of lichens containing usnic acid and mucilage. Usnea barbata has been used as an herbal medicine.