circ- +

Used before a date to indicate that it is approximate or that it is an estimated date; abbreviated as: ca, ca., c., c, cir., circ.

Designating physiological activity that occurs approximately every twenty-four hours, or the rhythm of such activity.

1. A two-dimensional geometric figure formed with a curved line surrounding a center point, every point of the line being an equal distance from the center point.
2. A circular course, circuit, or orbit: a satellite's circle around the earth.
3. A curved section or tier of seats in a theater.
4. A process, series, or process that finishes at its starting point or continuously repeats itself; a cycle.
5. A group of people sharing a common interest, profession, activity, social background, or achievement: well-known in artistic circles.
6. A territorial or administrative division, especially of a province, in some European countries.

1. Surrounded; encompassed; inclosed.
2. Having the form of a circle; round.

1. A decorated metal band worn around the head.
2. A small circle; especially, a circular ornament.

1. To make or to form a circle; to enclose.
2. To move around in a circle.

1. Being or taking a roundabout, lengthy course.
2. Roundabout; not direct; such as, a circuitous route; a circuitous argument.
3. Marked by obliqueness or indirection in speech or conduct.
4. Deviating from a straight course: "Her father took a circuitous route to avoid the rush-hour traffic."

1. Relating to a circle.
2. Shaped like or nearly like a circle; round.
3. Moving in or forming a circle.
4. Circuitous; roundabout: "We took a circular route to work."
5. Using a premise to prove a conclusion that in turn is used to prove the premise: "He was making a circular argument."
6. Defining one word in terms of another that is itself defined in terms of the first word.
7. Addressed or distributed to a large number of people.

1. The roundness of a two-dimensional figure.
2. The quality or fact of being circular in shape.
3. The indirect and complicated nature of something; such as, a method or route.
4. The illogical nature of something; such as, an argument or piece of reasoning.

Circulating printed notices as a means of advertising.

1. To publicize with circulars.
2. To canvass or to take a poll using a questionnaire.

1. Anyone who publicizes with circulars.
2. Someone who canvasses or takes a poll using a questionnaire.

1. To move in a circle or to circuit; to move or to pass through a circuit back to the starting point: "Blood circulates throughout the body."
2. To pass from place to place, from person to person, etc.
3. To be distributed or sold; especially, over a wide area.
4. In libraries, a reference to books and other materials which are available for borrowing by people from a library for a specified period of time.
5. To cause to pass from place to place, person to person, etc.; to disseminate; to distribute: "He just kept on circulating the rumor."

1. Something that is moved freely around an object or an area.
2. Distributed or passed from person to person or from place to place.