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.
TYROTHRICIN
tyrothricin
(noun) a mixture of antibiotics applied locally to infections caused by Gram-positive bacteria
Source: WordNet® 3.1
Noun
tyrothricin (countable and uncountable, plural tyrothricins)
A mixture of the antibiotics tyrocidine and gramicidin, used topically to treat gram-positive bacterial infections.
Source: Wiktionary
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2 April 2025
COVERT
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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