Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
isothermic is an adjective meaning "of or relating to an isotherm". It carries one recorded sense.
of or relating to an isotherm
Definitions, synonyms and semantic relations for isothermic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.