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.
libretto
(noun) the words of an opera or musical play
Source: WordNet® 3.1
libretti
(rare) plural of libretto
Source: Wiktionary
Li*bret"to, n.; pl. E. Librettos, It. Libretti. Etym: [It., dim. of libro book, L. liber. See Libel.] (Mus.) (a) A book containing the words of an opera or extended piece of music. (b) The words themselves.
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.