The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.
CONVEX
convex, bulging
(adjective) curving or bulging outward
Source: WordNet® 3.1
Etymology
Adjective
convex (comparative more convex, superlative most convex)
curved or bowed outward like the outside of a bowl or sphere or circle
(mathematics, not comparable, of a set in Euclidean space) arranged such that for any two points in the set, a straight line between the two points is contained within the set.
(geometry, not comparable, of a polygon) having no internal angles greater than 180 degrees.
(functional analysis, not comparable, of a real-valued function on the reals) having an epigraph which is a convex set.
Antonyms
• concave
Noun
convex (plural convexes)
Any convex body or surface.
Source: Wiktionary
Con"vex, a. Etym: [L. convexus vaulted, arched, convex, concave, fr. convehere to bring together: cf. F. convexe. See Vehicle.]
Definition: Rising or swelling into a spherical or rounded form; regularly protuberant or bulging; -- said of a spherical surface or curved line when viewed from without, in opposition to concave. Drops of water naturally form themselves into figures with a convex surface. Whewell. Double convex, convex on both sides; convexo-convex.
Con"vex, n.
Definition: A convex body or surface. Half heaven's convex glitters with the flame. Tickell.
Note: This word was often pronounced con-vex' by early writers, as by Milton, and occasionallyby later poets.
Source: Webster’s Unabridged Dictionary 1913 Edition
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19 June 2025
ROOTS
(noun) the condition of belonging to a particular place or group by virtue of social or ethnic or cultural lineage; “his roots in Texas go back a long way”; “he went back to Sweden to search for his roots”; “his music has African roots”
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