WordReference Random House Unabridged Dictionary of American English © 2026
lu•te•o•lin
(lo̅o̅′tē ə lin),USA pronunciation n. [Chem.]
- Chemistrya yellow coloring substance, C15H10O6, obtained from the weed Reseda luteola: used in dyeing silk and, formerly, in medicine.
- Neo-Latin (Reseda) luteol(a), special use of feminine of Latin lūteolus yellowish (diminutive of lūteus yellow; see luteous) + -in2
- 1835–45