— adiabatically , adv.
/ad'ee euh bat"ik, ay'duy euh-/ , adj.
occurring without gain or loss of heat (opposed to diabatic ): an adiabatic process.
[ 1875-80; adiábat ( os ) incapable of being crossed ( a- A- 6 + dia- DIA- + ba- (s. of baínein to cross) + -tos verbal adj. suffix) + -IC; cf. DIABATIC ]