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.
mathesis (uncountable)
(now rare) Mental calculation or discipline; science, especially mathematical learning. [from 15th c.]
The science of establishing a systematic order for things. (After Foucault.) [from 1970s]
• atheisms
Source: Wiktionary
Ma*the"sis, n. Etym: [L., fr. Gr.
Definition: Learning; especially, mathematics. [R.] Pope.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 May 2025
(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine
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.