Absciss

abS is, n.; pi. Absci es, ab's is-ez. Ab- sci a, -sisS a, n. pi. Lat. Absci ae, -sis'se, Eng. Absci as, -saz. (Geom.) One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coordinate axes. [L. ab and scindere, sci um, to cut.]