trillionth trillionize • Trillium · · · Info · Definitions · Synonyms · Characters · · trillionth · · Text Latin · · Script 10 · · Length Definitions · · · (noun) one part in a trillion equal parts. Synonyms: one-trillionth. · · Noun Definition 1 (adj) the ordinal number of one trillion in counting order. · · Adjective Definition 1 Synonyms · · · one-trillionth · · Synonym 1 Characters · · h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074