(anatomy, relational) Of or pertaining to the Eustachian tube and the pharynx. / (anatomy, relational) Relating to the salpingopharyngeus.

(mathematics) An important statement about surfaces in differential geometry, connecting their geometry (in the sense of curvature) to their topology (in the sense of the Euler characteristic).

(colloquial) Approaching; about; roughly.

(aviation, ship-building) A curve indicating the shape of an airfoil or nautical equivalent in a vertical plane parallel to the longitudinal axis of the craft or vessel.