The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.
insolubles
plural of insoluble
Source: Wiktionary
In*sol"u*ble, a. Etym: [L. insolubilis indissoluble, that can not be loosed: cf. F. insoluble. See In- not, and Soluble, and cf. Insolvable.]
1. Not soluble; in capable or difficult of being dissolved, as by a liquid; as, chalk is insoluble in water.
2. Not to be solved or explained; insolvable; as, an insoluble doubt, question, or difficulty.
3. Strong. "An insoluble wall." [Obs.] Holland
Source: Webster’s Unabridged Dictionary 1913 Edition
11 May 2025
(noun) a light drumstick with a rounded head that is used to strike such percussion instruments as chimes, kettledrums, marimbas, glockenspiels, etc.
The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.