Apothem: (sometimes abbreviated as apo) of a regular polygon is a line segment from the center to the midpoint of one of its sides. Equivalently, it is the line drawn from the center of the polygon that is perpendicular to one of its sides.

Source: Italian

Plural: Apotemi


asymptote; In analytic geometry, an asymptote (/ˈæsɪmptt/) of a curve is a line such that the distance between the curve and the line approaches zero as one or both of the x or y coordinates tends to infinity.

Source: Italian

PLural: Asintoti