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.
sericin (countable and uncountable, plural sericins)
A water-soluble glycoprotein that binds the two fibroin filaments of a silk fibre
• irenics, resinic, sirenic
Source: Wiktionary
Ser"i*cin, n. Etym: [L. sericus silken.] (Chem.)
Definition: A gelatinous nitrogenous material extracted from crude silk and other similar fiber by boiling water; -- called also silk gelatin.
Source: Webster’s Unabridged Dictionary 1913 Edition
22 April 2025
(adjective) made smooth and bright by or as if by rubbing; reflecting a sheen or glow; “bright silver candlesticks”; “a burnished brass knocker”; “she brushed her hair until it fell in lustrous auburn waves”; “rows of shining glasses”; “shiny black patents”
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.