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.
ISOMERISM
isomerism
(noun) the state of being an isomer; the complex of chemical and physical phenomena characteristic of isomers
Source: WordNet® 3.1
Etymology
Noun
isomerism (countable and uncountable, plural isomerisms)
(chemistry) the phenomenon of the existence of isomers - the existence of different substances with the same molecular formulae
(chemistry) the interconversion of isomers
(nuclear physics) nuclear isomerism, the phenomenon of the existence of nuclear isomers
Coordinate terms
• tautomerism
Source: Wiktionary
I*som"er*ism, n. (Chem.)
Definition: The state, quality, or relation, of two or more isomeric substances. Physical isomerism (Chem.), the condition or relation of certain (metameric) substances, which, while chemically identical (in that they have the same composition, the same molecular weights, and the same ultimate constitution), are yet physically different, as in their action on polarized light, as dextro- and lævo-tartaric acids. In such compounds there is usually at least one unsymmetrical carbon atom. See Unsymmetrical.
Source: Webster’s Unabridged Dictionary 1913 Edition
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Word of the Day
13 January 2025
SOAK
(noun) the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid); “a good soak put life back in the wagon”
Coffee Trivia
