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.
Nigerian, Nigerien
(adjective) of or relating to the people of Nigeria; “a Nigerian novelist won the Nobel Prize for literature this year”
Nigerien
(noun) a native or inhabitant of Niger
Source: WordNet® 3.1
5 February 2025
(noun) activity involved in maintaining something in good working order; “he wrote the manual on car care”
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.