heliotherapy heliotaxis • heliothermometer · · · Info · Definitions · Synonyms · Characters · · heliotherapy · · Text Latin · · Script 12 · · Length Definitions · · · (noun) therapeutic exposure to sunlight. Synonyms: insolation. · · Noun Definition 1 Synonyms · · · insolation · · Synonym 1 Characters · · 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 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