coconut oil UK /ˌkəʊ.kə.nʌt ˈɔɪ(ə)l/US /ˌkoʊ.kə.nʌt ˈɔɪ(ə)l/ noun1 •A type of cooking oil extracted from the kernel or meat of matured coconuts harvested from the coconut palm. formscoconut oils