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.
fountainhead, headspring, head
(noun) the source of water from which a stream arises; “they tracked him back toward the head of the stream”
Source: WordNet® 3.1
headspring (plural headsprings)
A fountainhead; a source.
(figurative) A basis or foundation.
(gymnastics) A move in which the gymnast places both hands on the mat with the top of the head about 6 inches in front, pushes off with the hands while flipping the legs overhead, and lands on the feet.
A spring that sits at the top of a mechanism, pushing the internal parts inward.
headspring (third-person singular simple present headsprings, present participle headspringing, simple past and past participle headspringed)
(gymnastics) To perform a headspring.
• ring-shaped, springhead
Source: Wiktionary
Head"spring`, n.
Definition: Fountain; source. The headspring of our belief. Stapleton.
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.