/looh"tee euh lin/ , n. Chem.
a yellow coloring substance, C 15 H 10 O 6 , obtained from the weed Reseda luteola: used in dyeing silk and, formerly, in medicine.
[ 1835-45; Reseda ) luteol ( a ), special use of fem. of L luteolus yellowish (dim. of luteus yellow; see LUTEOUS) + -IN 2 ]