(organic chemistry) The acetate anion [C₂H₃O₂]⁻, a carboxylate and the conjugate base of ethanoic acid (acetic acid).

plural of ace in the hole

A peptide toxin present in the venom of the scorpion Centruroides margaritatus

(transitive) To throw. / (transitive or intransitive, baseball) To throw (the ball) toward a batter at home plate. / (intransitive, baseball) To play baseball in the position of pitcher.