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.
AMBIPOLAR
Etymology
Adjective
ambipolar (comparative more ambipolar, superlative most ambipolar)
Reacting to both positive and negative polarity.
Source: Wiktionary
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5 January 2025
PTEROSAUR
(noun) an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimb
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