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English definition of “axis”

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axis

noun [C]  /ˈæk·səs/ ( plural axes  /ˈæk·siz/) us  
a real or imaginary straight line that goes through the center of a spinning object or a line that divides a shape into two equal halves earth science The earth's axis is an imaginary line that goes through the earth between the North Pole and the South Pole. mathematics An axis is also a line on a graph used to show the position of a point.
(Definition of axis from the Cambridge Academic Content Dictionary © Cambridge University Press)
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