Excretum

noun

Definitions

Noun
  1. 1
    singular of excreta form-of, singular

    "Tannin is contained in many plants and parts of plants; it often occurs in the cells of growing parts, and is then apparently useful in the metabolism. It very often occurs as an excretum in the bark and elsewhere, and it is such parts that are chiefly used as sources of it for commercial purposes."

Etymology

From Latin excrētum, neuter singular of excrētus.

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