circum-

(Latin: around, about, surrounding, closed curve, circling, circular on all sides; literally, "in a circle")

circumsolar (adjective), more circumsolar, most circumsolar
Relating to something that revolves around or is surrounding the sun: The earth is in a circumsolar course.
circumspect (adjective), more circumspect, most circumspect
1. A reference to being watchful and discreet; cautious; prudent actions: Linda behaved in a circumspect way while she was observing the code of conduct during her first visit at the governor’s house.
2. Relating to a something that is seriously considered: Shirley thought about her future after graduating from college with circumspect deliberations.
3. Marked by attention to all situations and probable consequences; being careful and sensible with professional advice: While figuring out her finances, Yvonne was very circumspect not to make a mistake with her investments.
Cautious, discreet, and concerned about consequences.
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Cautious, careful, and attentive to the situation.
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Relating to being wary and on guard.
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circumspection (s) (noun) (usually no plural)
1. An action that involves making careful thoughts and observations before taking an action; using caution; prudence: "The principal at school used circumspection in deciding which of the applicants should have the teaching position for the upcoming year."
2. The trait of being observant and prudent: "Circumspection was typical of Roger because he always thought through each situation before he decided to get involved with it."
3. The ability to know how to avoid embarrassment or distress by thinking about possible risks before doing or saying something: "A good turn of circumspection saved Heather from being embarrassed before she thanked the wrong person for the wonderful invitation that she received to attend the celebration of the international sports event."
circumspectly (adverb), more circumspectly, most circumspectly
Pertaining to being careful and sensible in order to avoid danger: "By moving slowly and circumspectly, the soldier avoided being ambushed."
A soldier must be circumspect or his life could be in danger.

A soldier is circumspectly watching and cautiously striving to see if there is any danger lurking in the forest.

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circumspectness (s) (noun) (usually no plural)
The quality of being cautious; the attribute of being careful before doing something wrong: "Craig definitely needed circumspectness while traveling abroad because he was not acquainted with the foreign currency, the language, nor the customs of the country he was in."
circumsphere (s) (noun), circumspheres (pl)
In geometry, a circumscribed sphere of a polyhedron which is a sphere that contains the polyhedron and touches each of the polyhedron's vertices (the points of geometric figures that are opposite their bases).
circumstance (s) (noun), circumstances (pl)
1. A condition or fact attending an event and having some bearing on it; a determining or modifying factor.
2. A condition or fact that determines or must be considered in the determining of a course of action.
3. The sum of determining factors beyond willful control; such as, a victim of circumstances.
4. A detail accompanying or surrounding an event; such as, in a narrative or series of events.
5. A formal display or ceremony; such as, the pomp and circumstance of a coronation.
6. A particular incident or occurrence.
circumstantial (adjective), more circumstantial, most circumstantial
1. A reference to containing or being based on facts that allow a court to deduce that somebody is legally guilty without conclusive proof; circumstantial evidence.
2. Relating to being of no primary significance; incidental.
3. Conveying a complete amount of of details.
4. Pertaining to speech or thinking that is characterized by unnecessary over detailing of data that impedes rather than promotes communication.
circumstantially (adverb), more circumstantially, most circumstantially
So far as the situation is concerned: The account was circumstantially accurate.
circumstantiate (verb), circumstantiates; circumstantiated; circumstantiating
1. To set forth or to verify with examples.
2. To give detailed proof or a description of.
3. To provide evidence to support an argument or an allegation.
circumstantiation (s) (noun), circumstantiations (pl)
1. The setting forth or verification of examples.
2. Having given detailed proof or a description of.
circumstellar (adjective), more circumstellar, most circumstellar
Relating to revolving around or surrounding a star.
circumterrestrial (adjective)
Revolving around or surrounding the earth.
circumvallate (verb), circumvallates; circumvallated; circumvallating
1. Surrounded by a trench or fossa or by a ridge as, for example, the circumvallate papillae on the tongue.
2. Surround with or as if with a rampart or other fortification.
3. To protect a town or camp by surrounding it with a rampart or a defensive wall.
circumvallation (s) (noun), circumvallations (pl)
1. A more or less continuous chain of redoubts and breastworks raised by besiegers outside the line of a besieged place to protect the besiegers from attacks from the outside; such as, by a relieving force.
2. A trench guarded with a parapet, constructed by besiegers, to secure themselves and check sallies of the besieged.

Related "around, round, surrounding" units: ambi-; ampho-; circ-; cyclo-, -cycle; gyro-; peri-.