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.
DEXTROROTATORY
dextrorotary, dextrorotatory, right-handed
(adjective) rotating to the right
Source: WordNet® 3.1
Etymology
Adjective
dextrorotatory (not comparable)
(chemistry, of an optically active compound or crystal) That rotates the plane of polarized light to the right, or clockwise.
Synonyms
• dextrogyre, dextrogyrate, dextro; d- (symbol); dex-, dextro- (prefix)
Antonyms
• levorotatory
Source: Wiktionary
Dex`tro*ro"ta*to*ry, a. Etym: [Dextro- + rotatory.] (Chem. & Opt.)
Definition: Turning, or causing to turn, toward the right hand; esp., turning the plane of polarization of luminous rays toward the right hand; as, dextrorotatory crystals, sugars, etc. Cf. Levorotatory.
Source: Webster’s Unabridged Dictionary 1913 Edition
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