OILSTONE Meaning of OILSTONE in English transcription, транскрипция: [ ˈɔɪlstəun ]n. a fine-grained flat stone used with oil for sharpening flat tools, e.g. chisels, planes, etc. (cf. WHETSTONE). English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012