(as-et-o-as-e'-tik). A mono- basic acid formed from acetic acid by re- placing one of the hydrogen atoms of the acid radicle with the acetic-acid radicle, acetyl.
See Gerhardt. A. Esters, CH 3 . CO . CH 2 .- C0 2 R, liquids possessing an ethereal odor, produced by the action of metallic sodium upon acetic esters; they dissolve with diffi- culty in water and can be distilled without decomposition.