prickly heat prickly grass • prickly-leafed · · · Info · Definitions · Synonyms · Characters · · prickly heat · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) obstruction of the sweat ducts during high heat and humidity. Synonyms: prickly heat, heat rash, miliaria. · · Noun Definition 1 Synonyms · · · heat rash · · Synonym 1 miliaria · · Synonym 2 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 h latin small letter h U+0068 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C 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