the.com/acetate

means A chemical compound — often a vinegar-derived salt or the lightweight, film-forming plastic made from it — used in everything from eyeglass frames to photographic film to cigarette filters.

from Traces back to Latin 'acetum,' meaning vinegar, from 'acere,' to be sour. Acetic acid is the compound that gives vinegar its bite, and 'acetate' names the salts and esters formed from it. The leap from sour wine to sleek plastic happened in the 19th and 20th centuries, when chemists found that cellulose treated with acetic compounds — cellulose acetate — could be spun into fiber or molded into a tough, shiny film, launching it into eyewear, film stock, and fashion.