quadrant (redirected from Quadrantal)

quadrant /quad·rant/ (kwod´rant)

1. one fourth of the circumference of a circle.

2. one of four corresponding parts, or quarters, as of the surface of the abdomen or of the field of vision.

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quad·rant (kwdrnt)

n.

1. A circular arc of 90 degrees; one fourth of the circumference of a circle.

2. A quarter portion of any roughly circular anatomical area such as the abdomen, measuring along imaginary axes at right angles to each other.

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quad·rantic (kw-drntk) adj.

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quadrant (qdrnt, quad)

[kwod′rənt]

Etymology: L, quadrans, a fourth part

1 one quarter of a circle.

2 one quarter of an anatomic area formed by the division of the area by imaginary vertical and horizontal lines bisecting each other. See abdominal quadrant.

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quadrant [kwod´rant]

1. one fourth of the circumference of a circle.

2. one of four corresponding parts, as of the abdominal surface, the dentition, the field of vision, or the tympanic membrane.

Quadrants of the abdomen. From Polaski and Tatro, 1996.

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quadrant,

n one quarter of a circle; also used to describe one fourth of the combined dental arches. One half of the maxillary dental arch is one quadrant of the combined dental arches.

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quadrant

1. one-quarter of the circumference of a circle.

2. one of four corresponding parts, or quarters, as of the surface of the abdomen or of the field of vision.

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quadrant

A quarter–eg, the liver is in the right upper quadrant of the abdomen. See Left lower quadrant, Left upper quadrant, Right lower quadrant, Right upper quadrant.