• (n.) A curve or surface whose equation is of the fourth degree in the variables. • (n.) A quantic of the fourth degree. See Quantic. • (a.) Of the fourth degree. Found on http://thinkexist.com/dictionary/meaning/quartic/
Quar'tic noun (a) (Alg.) A quantic of the fourth degree. See Quantic . (b) (Geom.) A curve or surface whose equation is of the fourth degree in the variables. Found on http://www.encyclo.co.uk/webster/Q/5