IPA: /ˌoʊliˈrɛzɪn/
KK: /oʊlɪˈrɛzɪn/
A natural substance made from a combination of oil and resin that comes from certain plants, like pine or balsam fir.
The oleoresin from the pine tree is used in various products, including perfumes and medicines.
Oleoresin is formed from "oleo-" (from Latin "oleum", meaning oil) and "resin" (from Latin "resina", meaning resin). The word refers to a natural mixture of oil and resin, typically found in certain plants.
Think of 'oil' ('oleo-') mixed with 'resin' — that's what oleoresin is, a combination of these two substances.
No commonly confused words.