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.
YERKES
Yerkes, Robert M. Yerkes, Robert Mearns Yerkes
(noun) United States psychologist who studied the intelligence of primates (1876-1956)
Source: WordNet® 3.1
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11 May 2025
MALLET
(noun) a light drumstick with a rounded head that is used to strike such percussion instruments as chimes, kettledrums, marimbas, glockenspiels, etc.
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