noun Date: 1876 an unusually large and rapid drop in temperature over a short period of time (as 24 hours), a permanent wave set by a chemical preparation without the use of heat
COLD WAVE
Meaning of COLD WAVE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012