o·le·o·res·in 
(ō′lē-ō-rĕzĭn)
(ō′lē-ō-rĕzĭn)n.
1. A naturally occurring mixture of essential oils and a resin, extracted from various plants such as pines and balsam fir.
2. A substance prepared by solvent extraction of a spice or herb and used in flavoring and coloring foods.
o′le·o·resin·ous adj.