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CONCAVOCONVEX
Con*ca`vo-con"vex, a.
1. Concave on one side and convex on the other, as an eggshell or a crescent.
2. (Optics)
Definition: Specifically, having such a combination of concave and convex sides as makes the focal axis the shortest line between them. See Illust. under Lens.
Source: Webster’s Unabridged Dictionary 1913 Edition
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Word of the Day
31 March 2025
IMPROVISED
(adjective) done or made using whatever is available; “crossed the river on improvised bridges”; “the survivors used jury-rigged fishing gear”; “the rock served as a makeshift hammer”
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