curcumin Meaning, Definition & Usage

Cur"cu*min noun
Definitions
  1. (Chem.) The coloring principle of turmeric, or curcuma root, extracted as an orange yellow crystalline substance, C14H14O4, with a green fluorescence. ✍ It possesses acid properties and with alkalies forms brownish salts. This change in color from yellow to brown is the characteristic reaction of tumeric paper. See Turmeric paper, under Turmeric.

Webster 1913