Find the word definition

The Collaborative International Dictionary
Circulator

Circulator \Cir"cu*la`tor\, n. [Cf. L. circulator a peddler.] One who, or that which, circulates.

Douglas Harper's Etymology Dictionary
circulator

"one who puts (something) in circulation," 1755, agent noun in Latin form from circulate (v.). Classical Latin circulator meant "peddler, hawker," a sense attested occasionally in English 17c. and after.

Wiktionary
circulator

n. 1 A person or thing that causes something to circulate 2 (context transport English) A local transit system that provides regular service within a closed loop 3 (context electronics English) A passive electronic component with three or more ports, in which the ports can be accessed in such a way that when a signal is fed into any port it is transferred to the next port only

Wikipedia
Circulator

A circulator is a passive non- reciprocal three- or four- port device, in which a microwave or radio frequency signal entering any port is transmitted to the next port in rotation (only). A port in this context is a point where an external waveguide or transmission line (such as a microstrip line or a coaxial cable), connects to the device. For a three-port circulator, a signal applied to port 1 only comes out of port 2; a signal applied to port 2 only comes out of port 3; a signal applied to port 3 only comes out of port 1, so to within a phase-factor, the scattering matrix for an ideal three-port circulator is


$$S = \begin{pmatrix} 0 & 0 & 1\\ 1 & 0 & 0 \\ 0 & 1 & 0 \end{pmatrix}$$

Circulator (disambiguation)

A circulator is an electrical device in which a signal entering any port is transmitted to the next port in rotation (only).

Circulator may also refer to:

  • Optical circulator, the optical equivalent of a conventional circulator
  • Circulator pump, a pump that is used to circulate gases, liquids, or slurries in a closed circuit
  • Downtown circulator, a road or bus system that distributes traffic or people through a downtown area
    • DC Circulator, a bus system in Washington, D.C.

Usage examples of "circulator".

We walked out into Krakatoa Dome, into the throbbing of the pump rooms and the air circulators, past the locks where a sleek cargo sub-sea liner was nuzzling into the edenite pressure chamber.

The circulators should have cleared away the whiff of their dirt-colored wrappings had they been just passing through.

The only sounds were the steady hum of air and nutrient circulators and the click of the pressure valves inside the tanks.

It came from the metal sphere at the center of the asteroid, regular and slow, like the working of air or nutrient circulators or the beating of a vast heart.

Nutrient feeds and circulators were massive pipes, each two meters in diameter, and the neural connectors were heavy clusters of wave guides and thick fiber-optic bundles.

The starship’s cool air tinged with the faint crisp scent of warm isolinear circuitry, the almost soothing hum of atmospheric circulators and scrubbers, the rushing pulse of water and coolant through hidden conduits.

The nose lifted, the bumps smoothed, and the air circulators began to clear the air.

With his ear pressed against the deck, he could hear the thrumming of the station's air circulators and fluid pumps.

The air circulators were off-line, along with most of the other equipment on the station.

The faint melody, festive even over the perpetual background hum of the immense air circulators and muffled howl of the outside winds, sounded like something by Brahms, but he couldn't place it.

Zefram Cochrane was aware only of the low whisper of the shuttlecrafi's air circulators, the soft hum of her engines, the warmth of the Companion's hand in his.

So anyway the breathe-gas pumps and circulators in that section are all blown to bits as we both know and before anybody can go work in there without a mask they have to be fixed but they are broke.

Now the circulators were working overtime to carry off the ketones of tension-sweat, and there were very convincing coffee-stains and rings by most of the recliner seats.

Now the circulators were working overtime to carry off the ketones of tension-sweat, and there were very convincing coffee-stains and rings by most of the recUner seats.