Ther`mo*chem"is*try (?), n. [Thermo- + chemistry.] That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.

Ther`mo*chem"is*try (?), n. [Thermo- + chemistry.] That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.