The pear-shaped fruit of a small tree of the rose family, Cydonia oblonga. / The deciduous tree bearing such fruit, native to Asia. / A soft yellow colour, like that of a quince.

(construction) A standing seam that uses a double overlapping interlock between two metal panels.

The path or track of a hedge through a landscape.

(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.