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.
invalidator, voider, nullifier
(noun) an official who can invalidate or nullify; “my bank check was voided and I wanted to know who the invalidator was”
Source: WordNet® 3.1
invalidator (plural invalidators)
One who, or that which, makes invalid.
Source: Wiktionary
20 June 2025
(adjective) marked by simplicity; having a humble opinion of yourself; “a modest apartment”; “too modest to wear his medals”
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.