OLEO- Meaning of OLEO- in English oleo- combining form BrE AmE ¦əʊl i əʊ AmE ¦oʊl i oʊ▷ — oleoresin ˌəʊl i əʊ ˈrez ɪn § - ə n AmE \ ˌoʊl i oʊ ˈrez ə n Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012