Webster’s Revised Unabridged Dictionary · 1913
Luteic
Lu·te′ic (lū·tē′ĭk), a. (Chem.) (a) Pertaining to, or derived from, weld (Reseda luteola). (b) Pertaining to, or designating, an acid resembling luteolin, but obtained from the flowers of Euphorbia cyparissias.