tropical year tropical sprue • tropical zone · · · Info · Definitions · Synonyms · Characters · · tropical year · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) the time for the earth to make one revolution around the sun, measured between two vernal equinoxes. Synonyms: solar year, tropical year, astronomical year, equinoctial year. · · Noun Definition 1 Synonyms · · · solar year · · Synonym 1 astronomical year · · Synonym 2 equinoctial year · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 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 p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079