(a.) Producing cold.

ache aching adiabatic absorption adiabatic demagnetization adiabatic expansion air conditioning air cooling alarming algific awing blast freezing blast-freezing chilblains chill chilliness cold creeps cold shivers congealing congealment congelation cooling creeps cryogenics cryopathy daunting deep freezing dehydrofreezing deterrent deterring disconcerting discouraging disheartening dismaying disquieting dithers duck bumps electric refrigeration fear-inspiring fearful fearsome food freezing freezable freezing frightening frightful frigorific frostbite gas refrigeration glaciable glaciation glacification goose bumps goose pimples gooseflesh horripilation infrigidation kibe mechanical refrigeration overawing quick freezing quick-freezing reduction of temperature refreezing refrigerant refrigeration refrigerative refrigeratory regelation scaring scary sharp freezing sharp-freezing shivering shivers startling super-cooling