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.
VOLCANIC
volcanic
(adjective) igneous rock produced by eruption and solidified on or near the earth’s surface; rhyolite or andesite or basalt; “volcanic rock includes the volcanic glass obsidian”
volcanic
(adjective) explosively unstable; “a volcanic temper”
volcanic
(adjective) relating to or produced by or consisting of volcanoes; “volcanic steam”; “volcanic islands such as Iceland”; “a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions”
Source: WordNet® 3.1
Etymology
Adjective
volcanic (not comparable)
Of or pertaining to a volcano or volcanoes
Produced by a volcano, or, more generally, by igneous agencies
Changed or affected by the heat of a volcano.
(figurative) Reminiscent of a volcano; explosive, violent, full of suppressed anger, energy etc.
Hyponyms
• cryovolcanic
Noun
volcanic (plural volcanics)
A volcanic rock.
The Ellesmere Island Volcanics are a Late Cretaceous volcanic group of volcanoes and lava flows in the Qikiqtaaluk Region of northern Ellesmere Island, Nunavut, Canada.
Source: Wiktionary
Vol*can"ic, a. Etym: [Cf. F. volcanique, It. vulcanico.]
1. Of or pertaining to a volcano or volcanoes; as, volcanic heat.
2. Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa.
3. Changed or affected by the heat of a volcano. Volcanic bomb, a mass ejected from a volcano, often of molten lava having a rounded form.
– Volcanic cone, a hill, conical in form, built up of cinders, tufa, or lava, during volcanic eruptions.
– Volcanic foci, the subterranean centers of volcanic action; the points beneath volcanoes where the causes producing volcanic phenomena are most active.
– Volcanic glass, the vitreous form of lava, produced by sudden cooling; obsidian. See Obsidian.
– Volcanic mud, fetid, sulphurous mud discharged by a volcano.
– Volcanic rocks, rocks which have been produced from the discharges of volcanic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or vitreous.
Source: Webster’s Unabridged Dictionary 1913 Edition
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24 February 2025
ANOMALY
(noun) (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)
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