adj pertaining to, or designating, a complex acid obtained, as a yellow crystalline substance, from certain genera of lichens (usnea, parmelia, ·etc. ).
USNIC
Meaning of USNIC in English
Webster English vocab. Английский словарь Webster. 2012
adj pertaining to, or designating, a complex acid obtained, as a yellow crystalline substance, from certain genera of lichens (usnea, parmelia, ·etc. ).
Webster English vocab. Английский словарь Webster. 2012