There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
MANDRELS
Noun
mandrels
plural of mandrel
Source: Wiktionary
MANDREL
Man"drel, n. Etym: [F. mandrin, prob. through (assumed) LL. mamphurinum, fr. L. mamphur a bow drill.] (Mach.) (a) A bar of metal inserted in the work to shape it, or to hold it, as in a lathe, during the process of manufacture; an arbor. (b) The live spindle of a turning lathe; the revolving arbor of a circular saw. It is usually driven by a pulley. [Written also manderil.] Mandrel lathe, a lathe with a stout spindle, adapted esp. for chucking, as for forming hollow articles by turning or spinning.
Source: Webster’s Unabridged Dictionary 1913 Edition
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2 May 2025
MINESHAFT
(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine
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