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.
didactic, didactical
(adjective) instructive (especially excessively)
Source: WordNet® 3.1
didactic (comparative more didactic, superlative most didactic)
Instructive or intended to teach or demonstrate, especially with regard to morality.
Synonyms: educative, instructive
Excessively moralizing.
(medicine) Teaching from textbooks rather than laboratory demonstration and clinical application.
didactic (plural didactics)
(archaic) A treatise on teaching or education.
Source: Wiktionary
Di*dac"tic, Di*dac"tic*al, a. Etym: [Gr. docere to teach: cf. F. didactique. See Docile.]
Definition: Fitted or intended to teach; conveying instruction; preceptive; instructive; teaching some moral lesson; as, didactic essays. "Didactical writings." Jer. Taylor. The finest didactic poem in any language. Macaulay.
Di*dac"tic, n.
Definition: A treatise on teaching or education. [Obs.] Milton.
Source: Webster’s Unabridged Dictionary 1913 Edition
14 April 2025
(noun) maximum clarity or distinctness of an image rendered by an optical system; “in focus”; “out of focus”
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.