thermal reactor thermal printer • thermal resistor · · · Info · Definitions · Antonyms · Characters · · thermal reactor · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderator. Synonyms: thermal reactor. · · Noun Definition 1 Antonyms · · · fast reactor · · Antonym 0 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 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074