( n. )
A white substance extracted from the lichen, Iceland moss (Cetraria Islandica). It consists of several ingredients, among which is cetraric acid, a white, crystalline, bitter substance.
( n. )
A white substance extracted from the lichen, Iceland moss (Cetraria Islandica). It consists of several ingredients, among which is cetraric acid, a white, crystalline, bitter substance.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012