axon
nounUK /ˈæksɒn/
US /ˈæksɑːn/
A long thin part of a nerve cell that carries messages away from the cell body.
The axon sends signals from the nerve cell to other cells in the body.
OTHER MEANINGS
2. The central shaft of a feather or the spine of a quill.
The bird's feather had a strong, straight axon.
3. The central axis of a sponge's skeletal structure.
Scientists studied the axon of the sponge under a microscope.
4. In botany, the main axis of a plant or inflorescence.
The axon of the flower stalk supported the blooming head.