Definition of tanninCategorized under "General"
Definition as written by Sis:
Astringent vegetable compounds having tanning properties, used commercially in manufacturing leather, inks and dyes. Also referred to as tannic acid.
Definition as written by Floridian:
The brown pigment found in leaves and stems, usually the weakest of all pigments and only visible in fall and winter as other pigments have left.
Definition as written by Terry:
The brown color in leaves that persist after all other colors have disappeared. During the growing season, tannin is masked by chlorophyll (green color); xanthophyll (yellow); carotene (yellow and orange); and anthocyanin (reds and purples)
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