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.
tuberous
(adjective) of or relating to or resembling a tuber; “a tuberous root”
Source: WordNet® 3.1
tuberous (not comparable)
Relating to, resembling, or producing tubers
Relating to tuberosities
• bus route, busroute, subroute
Source: Wiktionary
Tu"ber*ous, a. Etym: [L. tuberosus: cf. F. tubéreux. See Tuber, and cf. also Tuberose.]
1. Covered with knobby or wartlike prominences; knobbed.
2. (Bot.)
Definition: Consisting of, or bearing, tubers; resembling a tuber.
– Tu"ber*ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition
20 June 2025
(adjective) marked by simplicity; having a humble opinion of yourself; “a modest apartment”; “too modest to wear his medals”
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.