whale oil whale-mouthed • whaler · · · Info · Definitions · Synonyms · Characters · · whale oil · · Text Common · · Latin · · Scripts 9 · · Length 3 · · Syllables Definitions · · · (noun) a white to brown oil obtained from whale blubber; formerly used as an illuminant. Synonyms: whale oil, train oil. · · Noun Definition 1 Synonyms · · · train oil · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F w latin small letter w U+0077