-ol

-ol -ol (-[=o]l or -[o^]l) suff. [From alcohol.] (Chem.) A suffix denoting that the substance in the name of which it appears belongs to the series of alcohols or hydroxyl derivatives, as ethanol, carbinol, phenol, glycerol, etc. Such compounds contain the hydroxy radical ({-OH}). [1913 Webster +PJC]