paleotemperature Syllabification: (pa·le·o·tem·per·a·ture)Pronunciation: /ˌpālēōˈtemp(ə)rəCHər, -ˌCHo͝or/Definition of paleotemperature noun Geology the temperature or mean temperature of a locality at a time in the geological past. paleotemperature in other Oxford dictionaries Definition of paleotemperature in the British & World English dictionary