lubricant

Substance used to lower the coefficient of friction between two other materials.

Specific

carboxymethylcellulose (Celluvisc, Refresh) dry lubricant heptanoic acid; enanthoic acid; enanthylic acid; heptoic acid; heptylic acid (Artec) hydroxyethylcellulose hydroxypropyl methylcellulose (hypromellose, Isopto Alkaline, GenTeal, Gonak, Goniosol, Teargen II, Visine Tears) hydroxypropylcellulose (Lacrisert) polyvinyl alcohol propylene glycol silicone (Hydrope) surgical lubricant (K-Y jelly, Surgi-Lube) tyloxapol (Enuclene)