Noun
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the center around which something rotates
- axis of rotation -
the 2nd cervical vertebra
serves as a pivot for turning the head
- axis vertebra -
a group of countries in special alliance
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in World War II the alliance of Germany and Italy in 1936 which later included Japan and other nations
"the Axis opposed the Allies in World War II"
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the main stem or central part about which plant organs or plant parts such as branches are arranged
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a straight line through a body or figure that satisfies certain conditions