poikilotherm poikilocytosis • poikilothermic · · · Info · Definitions · Synonyms · Characters · · poikilotherm · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals. Synonyms: ectotherm. · · Noun Definition 1 Synonyms · · · ectotherm · · Synonym 1 Characters · · 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 m latin small letter m U+006D 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