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.
quaker, trembler
(noun) one who quakes and trembles with (or as with) fear
Source: WordNet® 3.1
trembler (plural tremblers)
One who, or that which, trembles.
Any of various New World passerine birds of the family Mimidae.
The vibrating hammer, or spring contact piece of a hammer break, as of the electric ignition apparatus for an internal combustion engine.
Source: Wiktionary
Trem"bler, n.
Definition: One who trembles.
Source: Webster’s Unabridged Dictionary 1913 Edition
10 April 2025
(adjective) capable of being extinguished or killed; “an extinguishable fire”; “hope too is extinguishable”
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.