[us.nea] n [NL, fr. Ar ushnah moss] (ca. 1597): any of a genus (Usnea) of widely distributed lichens (as old-man's beard) that have a grayish or yellow pendulous freely branched thallus
USNEA
Meaning of USNEA in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012