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.
monatomic, monoatomic
(adjective) of or relating to an element consisting of a single atom; “helium and argon are monatomic gases”
Source: WordNet® 3.1
monatomic (not comparable)
(chemistry) Of an element, consisting of a single atom in the molecule, for example, the noble gases. Note: Strictly speaking, a molecule has at least two atoms.
Source: Wiktionary
Mon`a*tom"ic, adv. Etym: [Mon- + atomic.] (Chem.) (a) Consisting of, or containing, one atom; as, the molecule of mercury is monatomic. (b) Having the equivalence or replacing power of an atom of hydrogen; univalent; as, the methyl radical is monatomic.
Source: Webster’s Unabridged Dictionary 1913 Edition
29 May 2025
(adjective) characterized by careful evaluation and judgment; “a critical reading”; “a critical dissertation”; “a critical analysis of Melville’s writings”
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.