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.
proustite (usually uncountable, plural proustites)
(mineral) A mineral, Ag3AsS3, often found with pyrargyrite in silver veins.
Source: Wiktionary
Proust"ite, n. Etym: [From the French chemist, J. L. Proust.] (Min.)
Definition: A sulphide of arsenic and silver of a beautiful cochineal-red color, occurring in rhombohedral crystals, and also massive; ruby silver.
Source: Webster’s Unabridged Dictionary 1913 Edition
25 May 2025
(noun) a bronchodilator (trade names Ventolin or Proventil) used for asthma and emphysema and other lung conditions; available in oral or inhalant forms; side effects are tachycardia and shakiness
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.