Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Latin
Origin: 'axis, axle'

axis

noun
     
Related topics: Earth Sciences, Maths, Geography
ax‧is plural axes [countable]
1SG the imaginary line around which a large round object, such as the Earth, turns:
The Earth rotates on an axis between the north and south poles.
2HM a line drawn across the middle of a regular shape that divides it into two equal parts
3HM either of the two lines of a graph, by which the positions of points are measured

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