axis

Pronunciation

• IPA: /æxɪs/

Noun

Singular axis

Plural axes

This ball is spinning on its axis

1. (mathematics) An axis is the imaginary line that an object spins around. This is the middle of the circle of the turn, and at a right angle to it.

   The Earth rotates once a day on its axis.

2. (anatomy) The second cervical vertebra of the spine.

Noun 2

Singular axis

Plural axises

An axis

1. A type of deer that lives to Asia.