The term neural transmitter is composed of two words: axon and neurotransmitter. Axon is a four-letter word which refers to the long, thin projection of a neuron that carries electrical impulses away from the cell body. Neurotransmitter is a chemical substance released by neurons that transmits signals to other neurons or cells. Together, these two terms refer to the process by which neurons communicate with each other, allowing for the transmission of information throughout the nervous system.