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.
PROPENAL
propenal, acrolein
(noun) a pungent colorless unsaturated liquid aldehyde made from propene
Source: WordNet® 3.1
Noun
propenal (countable and uncountable, plural propenals)
(organic compound) The compound acrolein.
Source: Wiktionary
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12 February 2025
MEGACOLON
(noun) an abnormal enlargement of the colon; can be congenital (as in Hirschsprung’s disease) or acquired (as when children refuse to defecate)
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