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.
invariances
plural of invariance
• vicenarians
Source: Wiktionary
In*va"ri*ance, n. (Math.)
Definition: The property of remaining invariable under prescribed or implied conditions. J. J. Sylvester.
Source: Webster’s Unabridged Dictionary 1913 Edition
28 February 2025
(adjective) pertaining to giving directives or rules; “prescriptive grammar is concerned with norms of or rules for correct usage”
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.