QUADRANT


Meaning of QUADRANT in English

n.1 a quarter of a circle's circumference.

2 a plane figure enclosed by two radii of a circle at right angles and the arc cut off by them.

3 a quarter of a sphere etc.

4 a a thing, esp. a graduated strip of metal, shaped like a quarter-circle. b an instrument graduated (esp. through an arc of 90°) for taking angular measurements.

Derivatives:

quadrantal adj.

Etymology: ME f. L quadrans -antis quarter f. quattuor four

Oxford English vocab.      Оксфордский английский словарь.