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1. a gauge or pattern, cut out in wood or metal, used in woodwork, etc., to help shape something accurately
2. a pattern cut out in card or plastic, used in various crafts to reproduce shapes
3. Biochem the molecular structure of a compound that serves as a pattern for the production of the molecular structure of another specific compound in a reaction
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
1. A pattern, usually of sheet material, used as a guide for setting out work and in repeating dimensions.
2. A piece of stone, metal, or timber placed in a wall to receive the impost of a beam, girders, etc., and to distribute its load.
3. A beam or plate spanning a door or window space to sustain joists and transfer their load to piers.
4. One of the wedges in a building block.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.