violaquercitrin

from The Century Dictionary.

• noun A yellow glucoside, C₂₇H₂₈O₁₆, contained in Viola tricolor var. arvensis. It crystallizes in slender needles.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A yellow crystalline glucoside obtained from the pansy (Viola tricolor), and decomposing into glucose and quercitrin.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry A yellow crystalline glucoside obtained from the pansy (Viola tricolor) and decomposable into glucose and quercitrin.