1. Not involving heat
   "nonthermal luminescence"

See also: heat

Antonym: thermal

• clock on
• clock out
• clock pendulum
• clock radio
• clock speed
• clock time
• clock tower
• clock up
• clock watcher
• clock-watching
• clocking
• clockmaker
• clocks
• clocksmith
• clockwise
• clockwise rotation
• clockwork
• clockwork universe
• clod
• cloddish
• clodhopper
• clodpoll
• clofibrate
• clog
• clog dance