oilseed oil-secreting • oil shale · · · Info · Definitions · Synonyms · Characters · · oilseed · · Text Latin · · Script 7 · · Length 1 · · Syllables Definitions · · · (noun) any of several seeds that yield oil. Synonyms: oil-rich seed. · · Noun Definition 1 Synonyms · · · oil-rich seed · · Synonym 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F s latin small letter s U+0073