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.
demonstrability, provability
(noun) capability of being demonstrated or logically proved
Source: WordNet® 3.1
demonstrability (usually uncountable, plural demonstrabilities)
The quality of being demonstrable.
Source: Wiktionary
De*mon`stra*bil"i*ty, n.
Definition: The quality of being demonstrable; demonstrableness.
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.
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.