axis

What is the Definition of axis?

Noun:

1. a straight line through a body or figure that satisfies certain conditions
2. the main stem or central part about which plant organs or plant parts such as branches are arranged
3. in World War II the alliance of Germany and Italy in 1936 which later included Japan and other nations
4. a group of countries in special alliance
5. the 2nd cervical vertebra; serves as a pivot for turning the head
6. the center around which something rotates

Other meanings of axis (synonyms, cognates).