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Definition of Quoin
1. Noun. Expandable metal or wooden wedge used by printers to lock up a form within a chase.
2. Noun. The keystone of an arch.
3. Noun. (architecture) solid exterior angle of a building; especially one formed by a cornerstone.
Group relationships: Building, Edifice
Generic synonyms: Construction, Structure
Category relationships: Architecture
Definition of Quoin
1. n. Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked.
Definition of Quoin
1. Noun. Any of the corner building blocks of a building, usually larger or more ornate than the surrounding blocks. ¹
2. Noun. The keystone of an arch. ¹
3. Noun. A metal wedge which fits into the space between the type and the edge of a chase, and is tightened to fix the metal type in place. ¹
4. Noun. (obsolete nautical) A form of wedge used to prevent casks from moving ¹
¹ Source: wiktionary.com
Definition of Quoin
1. to secure with a type of wedge [v -ED, -ING, -S]
Medical Definition of Quoin
1. 1. Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked. In stone, the quoins consist of blocks larger than those used in the rest of the building, and cut to dimension. In brickwork, quoins consist of groups or masses of brick laid together, and in a certain imitation of quoins of stone. 2. A wedgelike piece of stone, wood metal, or other material, used for various purposes, as: To prevent casks from rolling. Hollow quoin. See Hollow. Quoin post, the post of a lock gate which abuts against the wall. See: Coin, and cf. Coigne. Source: Websters Dictionary (01 Mar 1998)