Entry 2 senses · 2 variants Webster, 1913 Quartic · Quar·tic · IPA a. n. 01 a. Of the fourth degree. 1. Of the fourth degree.(Mach.) 02 n. A quantic of the fourth degree. See Quantic. 1. A quantic of the fourth degree. See Quantic.(Alg.) See: Quantic