quoin

n. கட்டிடப்புற மூவைலக்கோணம்,மூலைக்கல்,அறை உள்மூலை, அச்சுருப்பற்றப்பு, துப்பாக்கி மட்ட அடைகட்டை, மிடா உருணாமல் துடுக்கும் உதைகட்டை, (வினை) ஆப்பிட்டு உறுக்கு, அடைகொடுத்து உயர்த்து.

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Quoin, n. Etym: [See Coin, and cf. Coigne.] 1. (Arch.) Defn: Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked. Note: 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: (a) (Masonry) Defn: to support and steady a stone. (b) (Gun.) To support the breech of a cannon. (c) (Print.) To wedge or lock up a form within a chase. (d) (Naut.) To prevent casks from rolling. Hollow quoin. See under Hollow. -- Quoin post (Canals), the post of a lock gate which abuts against the wall.

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