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.
silicas
plural of silica
• Liassic, liassic
Source: Wiktionary
Sil"i*ca, n. Etym: [NL., from L. silex, silics, a flint.] (Chem.)
Definition: Silicon dioxide, SiO
Source: Webster’s Unabridged Dictionary 1913 Edition
6 March 2025
(noun) the two innermost layers of the meninges; cerebrospinal fluid circulates between these innermost layers
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.