A surname. / Ellipsis of McCool.; A surname from Irish, anglicized form of McCool.

(imperative) Used to implore someone to not reveal illegal or improper activity.

The process of cooling computer components via the Peltier effect.

(physics) the process of using the force exerted by a laser to reduce the temperature of a gas, or the spread of velocities of a beam of atoms

A large device, in the form of a tower-shaped building, in which warm water is cooled by evaporation caused by circulating currents of air

Global climate change in the form of declining average temperatures; which was conjectured in the 1970s.

(physics) The cooling of a liquid due to the removal of the faster-moving molecules by evaporation from its surface

(physics) The cooling of a gas as it undergoes adiabatic expansion

A system for centralized removal of heat for residential and commercial cooling requirements.

(obsolete) Something that dashes hopes.