the process of becoming cooler; a falling temperature
"The chilling wind swept across the frozen lake, dropping the temperature below zero within minutes."
The act by which something is chilled.
"The chilling of the milk took longer than expected because we left the door open too long."
present participle of chill
"The wind blew so hard against his face that it felt chillingly cold."
Becoming cold.
"The chilling wind swept through the valley, turning the once warm air into a biting freeze."