noun: (biology) A cell of a unicellular organism, constituting its entire body.
noun: (cytology) The main body of a cell, containing its nucleus and organelles (as opposed to various projections or elements of external structure such as cell wall, flagella, dendrites, etc.).
noun: (neurology) The nucleus-containing central part of a neuron exclusive of its axons and dendrites that is the major structural element of the gray matter of the brain and spinal cord, the ganglia, and the retina.
