Definition of "casing" []

• An outer cover: a shell casing; a tire casing. (noun)
• The frame or framework for a window or door. (noun)
• A metal pipe or tube used as a lining for a water, oil, or gas well. (noun)
• A membranous case, often made of animal intestine, used to contain sausage or other processed meat. (noun)
• A narrow passage for a rod or cord, as in a curtain or the waistband of a garment, made by folding over a small strip of fabric at its edge along its width and sewing it in place. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Remembering some of the things Uncle Gib had said years ago in his unregenerate days when Lance was a child, he thought of the term casing the joint, and he thought of observing entrances and exits, ways of getting in and out."
• "The use of zebu intestine as a casing is actually a child of mass retailing and the need of supermarkets for cervelas that were alike in color, size and flavor."
• "DANIEL COLEMAN, FORMER FBI AGENT: Ali Mohammed had done what they call casing of the American Embassy in Nairobi in December of 1993, a five-year span between casing and operation."