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.
lapboard
(noun) writing board used on the lap as a table or desk
Source: WordNet® 3.1
lapboard (plural lapboards)
A board held on the lap as a simple lap desk.
Source: Wiktionary
Lap"board`, n.
Definition: A board used on the lap as a substitute for a table, as by tailors.
Source: Webster’s Unabridged Dictionary 1913 Edition
12 June 2025
(noun) a decrease in the density of something; “a sound wave causes periodic rarefactions in its medium”
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.