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.
subsoil, undersoil
(noun) the layer of soil between the topsoil and bedrock
Source: WordNet® 3.1
undersoil (plural undersoils)
(geology) The soil underneath the surface / topsoil and above the bedrock.
• underoils
Source: Wiktionary
Un"der*soil`, n.
Definition: The soil beneath the surface; understratum; subsoil.
Source: Webster’s Unabridged Dictionary 1913 Edition
27 December 2024
(adjective) restricted to a particular condition of life; “an obligate anaerobe can survive only in the absence of oxygen”
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.