a case or covering; housing.
material for a case or covering.
the framework around a door or window.
the outermost covering of an automobile tire.
any frame or framework.
a steel pipe or tubing, especially as used in oil and gas wells.
a layer of glass that has been fused to an underlying layer of glass of a different color or of different properties.
the thin, tubular membrane of the intestines of sheep, cattle, or hogs, or a synthetic facsimile, for encasing processed meat in making sausages, salamis, etc.
Nautical. the walls surrounding a funnel.
a channel created in a garment or other article to carry a drawstring or elastic, as by sewing a strip of cloth to the basic material with two parallel rows of stitches.

1565–75; case2 + -ing1

undercasing, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
casing (ˈkeɪsɪŋ)
1.  a protective case or cover
2.  material for a case or cover
3.  Also called: case a frame containing a door, window, or staircase
4.  the intestines of cattle, pigs, etc, or a synthetic substitute, used as a container for sausage meat
5.  the outer cover of a pneumatic tyre
6.  a pipe or tube used to line a hole or shaft
7.  the outer shell of a steam or gas turbine

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"state of affairs," early 13c., from O.Fr. cas "an event," from L. casus "a chance," lit. "a falling," from cas-, pp. stem of cadere "to fall, sink, settle down, decline, perish" (used widely: of the setting of heavenly bodies, the fall of Troy, suicides), from PIE base *kad- "to lay out, fall or make
fall, yield, break up" (cf. Skt. sad- "to fall down," Armenian chacnum "to fall, become low," perhaps also M.Ir. casar "hail, lightning"). The notion being "that which falls" as "that which happens." Widespread extended senses in law, medicine, grammar, etc. In case "in the event" is recorded from mid-14c. Case history is from 1912, originally medical; case study is from 1933, originally legal.

"receptacle," c.1300, from O.N.Fr. casse, O.Fr. chasse, from L. capsa "box," from capere "to take, hold" (see capable). The verb meaning "examine, inspect" (usually prior to robbing) is Amer.Eng. slang first recorded 1915. Artillery sense is from 1660s, from case-shot "small
projectiles put in cases" (1620s). Reference in the printing trade (first recorded 1580s) to the two trays where compositors keep their types in separate compartments for easy access led to upper case for capitals and lower case for small letters.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

case (kās)
An occurrence of a disease or disorder.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary

case definition

A grammatical category indicating whether nouns and pronouns are functioning as the subject of a sentence (nominative case) or the object of a sentence (objective case), or are indicating possession (possessive case). He is in the nominative case, him is in the objective case, and his is in the possessive case. In a language such as English, nouns do not change their form in the nominative or objective case. Only pronouns do. Thus, ball stays the same in both “the ball is thrown,” where it is the subject, and in “Harry threw the ball,” where it is the object.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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