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.
specialization, specialisation, specialty, speciality, specialism
(noun) the special line of work you have adopted as your career; “his specialization is gastroenterology”
specialism
(noun) the concentration of your efforts on a particular field of study or occupation
Source: WordNet® 3.1
specialism (countable and uncountable, plural specialisms)
(countable) Speciality.
(uncountable) The concentration of one's efforts upon a particular field of study.
Source: Wiktionary
Spe"cial*ism, n.
Definition: Devotion to a particular and restricted part or branch of knowledge, art, or science; as, medical specialism.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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.