Source : Webster's Revised Unabridged Dictionary (1913)

Cresylic \Cre*syl"ic\ (kr[-e]*s[i^]l"[i^]k), a. [From
   {Creosote}.] (Chem.)
   Pertaining to, or derived from, cresol, creosote, etc.

   {Cresylic acid}. (Chem.) See {Cresol}.