crook(redirected from is crook on)
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Related to is crook on: by hook or by crook
Music a piece of tubing added to a brass instrument in order to obtain a lower harmonic series
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
1. The warp of a board edge from a straight line drawn between the two ends; also called edgebend or spring.
2. A piece of timber so warped; a knee.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.