A word is one or more sounds that in combination have a specific meaning assigned by a language. The symbolic meaning of words can be so powerful that people are willing to risk their lives for them or take the lives of others.
A nerve impulse is the relaying of a coded signal from a nerve cell to an effector (a muscle cell, a gland cell or another nerve cell) in response to a stimulus. It is the means by which a nerve cell communicates with another cell.
Nerve cell. Definition. noun, plural: nerve cells. A neuron; a cell of the nervous system that transmits nerve impulses. Supplement. Nerve cells are cells of the nervous system that transmit nerve impulses coming from sensory cells or from other nerve cells.Also called: 1  neuron.upplement. Nerve cells are cells of the nervous system that transmit nerve impulses coming from sensory cells or from other nerve cells. Also called: 1  neuron.