Of or pertaining to a parable; of the nature of a parable.Of or pertaining to parabole; of the nature of parabole.Having the form or outline of a. parabola; of, pertaining to, or resembling a parabola.Having only one point at infinity, or otherwise determined in character by the coalescence of two quantities.y = a + bx + cx + dx + ex + etc.A space in which the sum of the three angles of every triangle is equal to two right angles: so called because the two points at infinity on every straight line in such space coincide; also, every point in every plane in such a space is a point of no curvature, and is therefore a parabolic point.A parabola so approaching a curve that their distance apart becomes and remains less than any given distance, though never zero.n. A parabola or paraboloid.