I. therm- /θɜːm $ θɜːrm/ AmE prefix
another form of ↑ thermo-
II. thermo- /θɜːməʊ, -mə $ θɜːrmoʊ, -mə/ AmE ( also therm- ) prefix technical
[ Language: Greek ; Origin: therme ; ⇨ ↑ therm ]
relating to heat:
a thermostat (=for controlling temperature)
thermostable (=not changing when heated)