a. [ Glutaric + aconitic. ] (Chem.) Pertaining to, or derived from, an acid intermediate between glutaric and aconitic acids. [ 1913 Webster ]

a. [ From aconitic, by transposition of the letters. ] (Chem.) Pertaining to, or designating, an acid, C5H6O4, which is obtained as a white crystalline substance by decomposing aconitic and other organic acids. [ 1913 Webster ]

n. (Chem.) The unsaturated dicarboxylic acid CH2=C(COOH)CH2.COOH, also called methylenesuccynic acid and propylene dicarboxylic acid. [ PJC ]

a. (Geol.) Designating, or pertaining to, the series of rocks forming the Taconic mountains in Western New England. They were once supposed to be older than the Cambrian, but later proved to belong to the Lower Silurian and Cambrian. [ 1913 Webster ]