approximation
ap.prox.i.ma.tion \*-.pra:k-s*-'ma--sh*n\ \*-'pra:k-s*-.ma-t-iv\ n 1: the act or process of drawing together 2: the quality or state of being close esp. in value 3: something that is approximate; esp : a mathematical value that i s nearly but not exactly correct - ap.prox.i.ma.tive aj