CASING, participle present tense Covering with a case. CASING, noun 1. The act or operation of plastering a house with mortar on the outside, and striking it while wet, by a ruler, with the corner of a trowel, to make it resemble the joints of free-stone. 2. A covering; a case.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI