Definitions

from The Century Dictionary and Cyclopedia

  • Pertaining to or derived from wool: as, lanuginic acid.

Etymologies

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Examples

  • From its behaviour with the dyes, and with tannic acid and metallic salts, it would appear that lanuginic acid contains both acidic and basic groups.

    The Dyeing of Woollen Fabrics

  • A further proof of the acid nature of lanuginic acid is that wool may be dyed a fine magenta colour in a colourless solution of rosaniline base; for since rosaniline base is colourless, and it only forms a colour when combined with acids, the fibre has evidently acted the part of an acid in the combination.

    The Dyeing of Woollen Fabrics

  • Dr. Knecht has isolated from the wool fibre by extraction with alkalies and precipitation with acids a substance to which the name of lanuginic acid has been given.

    The Dyeing of Woollen Fabrics

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