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.
lunules
plural of lunule
Source: Wiktionary
Lu"nule, n. Etym: [F., fr. L. lunula, dim. of luna moon.]
1. (Anat.)
Definition: Anything crescent-shaped; a crescent-shaped part or mark; a lunula, a lune.
2. (Chem.)
Definition: A lune. See Lune.
3. (Zoöl.) (a) A small or narrow crescent. (b) A special area in front of the beak of many bivalve shells. It sometimes has the shape of a double crescent, but is oftener heart- shaped. See Illust. of Bivalve.
Source: Webster’s Unabridged Dictionary 1913 Edition
27 January 2025
(adjective) capable of being split or cleft or divided in the direction of the grain; “fissile crystals”; “fissile wood”
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.