Definitions

1. noun

A device or system for circulating fluid, air, or other substances, especially in a closed circuit.

“The circulator in the air conditioning system helped to evenly distribute the cooled air throughout the building.”

2. noun

A person who circulates, especially a person who collects and sells almanacs, newspapers, or other printed matter.

“In the past, many young people worked as circulators, selling newspapers on street corners.”

3. noun

A device that changes the frequency of an electromagnetic wave, especially to match the frequency of a resonant circuit.

“The radio engineer adjusted the circulator to tune in the desired frequency on the radio dial.”

4. verb

To cause something to move or flow in a circuit.

“The engineers worked to circulate the cooling water through the system to prevent overheating.”