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.
scour, abrade
(verb) rub hard or scrub; “scour the counter tops”
abrade, corrade, abrase, rub down, rub off
(verb) wear away
Source: WordNet® 3.1
abrade (third-person singular simple present abrades, present participle abrading, simple past and past participle abraded)
(transitive) To rub or wear off; erode. [First attested in the late 17th century.]
(transitive) To wear down or exhaust, as a person; irritate. [First attested in the mid 18th century.]
(transitive) To irritate by rubbing; chafe. [First attested in the mid 18th century.]
(transitive) To cause the surface to become more rough.
(intransitive) To undergo abrasion.
abrade (third-person singular simple present abrades, present participle abrading, simple past and past participle abraded)
(transitive) Obsolete spelling of abraid.
• Abdera, abread
Source: Wiktionary
Ab*rade", v. t. [imp. & p. p. Abraded; p. pr. & vb. n. Abrading.] Etym: [L. abradere, abrasum, to scrape off; ab + radere to scrape. See Rase, Raze.]
Definition: To rub or wear off; to waste or wear away by friction; as, to abrade rocks. Lyell.
A*brade", v. t.
Definition: Same as Abraid. [Obs.]
Source: Webster’s Unabridged Dictionary 1913 Edition
5 May 2025
(adjective) not developed, improved, exploited or used; “vast unexploited (or undeveloped) natural resources”; “taxes on undeveloped lots are low”
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.