Webster's 1913 Dictionary
LECANORIC
LECANORIC Lec `a *no "ric, a. (Chem. )
Defn: Pertaining to, or designating, an organic acid which is obtained from several varieties of lichen (Lecanora, Roccella, etc. ), as a white, crystalline substance, and is called also orsellic, or diorsellinic acid, lecanorin, etc.