thermal spring thermal resistor • thermanalgesia · · · Info · Definitions · Synonyms · Characters · · thermal spring · · Text Common · · Latin · · Scripts 14 · · Length 3 · · Syllables Definitions · · · (noun) a natural spring of water at a temperature of 70 F or above. Synonyms: hot spring, thermal spring. · · Noun Definition 1 Synonyms · · · hot spring · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074