catechu-tannic love

Definitions

from The Century Dictionary and Cyclopedia

  • Pertaining to catechu and tannin.

Etymologies

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Examples

  • It is by the action of tannin (gallotannic acid) on the ferric oxides thus formed that the black is produced, and by that of catechu-tannic acid contained in the extract of catechu that one obtains a dark green, almost black color.

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