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.
aperiodic, nonperiodic
(adjective) not recurring at regular intervals
Source: WordNet® 3.1
aperiodic (comparative more aperiodic, superlative most aperiodic)
That does not recur periodically
(physics) That does not have a periodic vibration
(mathematics, stochastic processes, of a state) for which any return to it may occur at irregular times; not periodic.
Antonym: periodic
• adipocire, apiocerid
Source: Wiktionary
10 June 2025
(noun) the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.); “communications is his major field of study”
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.