Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
pyrrol .
Etymologies
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Examples
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The compound, or compounds, known as "caffetannic acid" are probably the source of catechol, as the proteins are of ammonia, amins, and pyrrols.
All About Coffee 1909
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He considers the roasting of coffee as a destructive distillation process, summarizing the results, briefly, as the production of furfuraldehyde from the carbohydrates, acrolein from the fats, catechol and pyrogallol from the tannins, and ammonia, amins, and pyrrols from the proteins.
All About Coffee 1909
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