quoin

n 1: expandable metal or wooden wedge used by printers to lock up

a form within a chase [syn: {coign}, {coigne}]

2: the keystone of an arch [syn: {coign}, {coigne}]

3: (architecture) solid exterior angle of a building;

especially one formed by a cornerstone [syn: {corner}]

QUIN

Pyle 1965. Interactive language. Sammet 1969, p.691.