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quadrant
[ kwod-ruhnt ]
noun
- a quarter of a circle; an arc of 90°.
- the area included between such an arc and two radii drawn one to each extremity.
- something shaped like a quarter of a circle, as a part of a machine.
- Geometry, Astronomy. one of the four parts into which a plane, as the face of a heavenly body, is divided by two perpendicular lines, numbered counterclockwise from upper right:
the first quadrant of the moon.
- an instrument, usually containing a graduated arc of 90°, used in astronomy, navigation, etc., for measuring altitudes.
- Astrology. one of the four quarters of the horoscope: determined by the ascendant, nadir, descendant, and midheaven and numbered counterclockwise from the ascendant.
- Furniture. one of two metal sliding pieces, of quadrant form, used to support the fall front of a desk from above.
quadrant
/ ˈkwɒdrənt; kwɒˈdræntəl /
noun
- geometry
- a quarter of the circumference of a circle
- the area enclosed by two perpendicular radii of a circle and its circumference
- any of the four sections into which a plane is divided by two coordinate axes
- a piece of a mechanism in the form of a quarter circle, esp one used as a cam or a gear sector
- an instrument formerly used in astronomy and navigation for measuring the altitudes of stars, consisting of a graduated arc of 90° and a sighting mechanism attached to a movable arm
quadrant
/ kwŏd′rənt /
- An arc equal to one quarter of the circumference of a circle; an arc of 90°.
- Any of the four regions into which a plane is divided by the axes of a Cartesian coordinate system. The quadrants are numbered counterclockwise one through four, beginning with the quadrant in which both the x- and y-coordinates are positive (usually the upper right quadrant).
- A navigational instrument similar to a sextant but with an arc of 90° rather than 60°.
- See more at sextant
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Derived Forms
- quadrantal, adjective
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Other Words From
- quad·ran·tal [kwo-, dran, -tl], adjective
- quadrant·like adjective
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Word History and Origins
Origin of quadrant1
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Word History and Origins
Origin of quadrant1
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Example Sentences
Gohara suggests starting small—a quarter of a pea-sized dollop for every quadrant of your face.
Focus on each quadrant of the mouth and make sure to brush where your teeth meet your gums.
It became a leading news outlet in the agriculturally rich, deeply conservative counties of southeast Arkansas, the most traditionally southern quadrant of the state.
If you imagine all the experiences we can have, from in-person to online, or recorded to live, up to now almost everything in life fit neatly into one of those quadrants.
There was a sheet of plastic dividing us, and the market had been sectioned into quadrants for distance.
Point it south and it shows you the stars and planets in that quadrant of the sky.
It was a "one-quadrant" film, appealing only to adult women.
People forget all too readily, but Greenspan is a consultant to Pimco, the largest bond manager in this quadrant of the galaxy.
In the Eastern Quadrant will be seen some specimens of present-day attire, chiefly ladies' and children's dresses.
A quadrant of a circle is one quarter of the same, being bounded on two of its sides by two radial lines, as in Figure 49.
There must also be change wheels, studs and quadrant plates, self-acting feed for surfacing and cross slide, and clamping nuts.
The discovery of the latitude is easily effected by the quadrant, but the longitude is the difficulty.
"It is very nice here," said Boris Stefanovitch, looking across to the Quadrant with wistful, melancholy eyes.
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