| any of a group of acetic esters of cellulose, used to make yarns, textiles, nonflammable photographic films, rubber and celluloid substitutes, etc. |

| cellulose acetate n. Any of several compounds obtained by treating cellulose with acetic anhydride, used in lacquers, photographic film, transparent sheeting, and cigarette filters. |
| cellulose acetate
Any of several compounds obtained by treating cellulose with acetic anhydride. Cellulose acetate is used in lacquers, photographic film, transparent sheeting, and cigarette filters. Also called acetate, cellulose. |