Thermos bottle thermos bottle • thermoscope · · · Info · Definitions · Synonyms · Characters · · Thermos bottle · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) vacuum flask that preserves temperature of hot or cold drinks. Synonyms: thermos, thermos bottle, thermos flask. · · Noun Definition 1 Synonyms · · · thermos · · Synonym 1 thermos flask · · Synonym 2 Characters · · space U+0020 T latin capital letter t U+0054 b latin small letter b U+0062 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 s latin small letter s U+0073 t latin small letter t U+0074