FOK(redirected from Fill or kill order)
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Abbr. for “free of knots.” folded-plate construction, hipped-plate construction Construction consisting of thin, flat elements of concrete, steel, timber, etc., which are connected rigidly at angles with each other (similar to accordion folds), forming a stiff cross section which is capable of carrying a load over a long span.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.