- cool component
- cool down
- cool dwarf
- cooled camera
- cooled mold
- cooled parametric amplifier
- cooled Schottky-barrier mixer
- cooled stability superconductivity
- cooler
- Cooley
- Cooley-Tukey algorithm
- cool flame
- cool flame combustion
- cool frame bender
- cool giant
- Coolidge
- Coolidge Prosperity
- cooling
- cooling and drafting Unit
- cooling and heating source equipment
- cooling and heating source equipment room
- cooling bed
- cooling blood for calming endogenous wind
- cooling by spraying in livestock house
- cooling catastrophe