1. (Science: ophthalmology) The act or faculty of seeing, sight.
2. (Science: psychiatry) An apparition, a subjective sensation of vision not elicited by actual visual stimuli.
3. Visual acuity, symbol V.
Origin: L. Visio
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A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and external environment, neural pathways that conduct this information to the brain and parts of the brain that processes this information. Know the different sensory systems of the human body as elaborated by this tutorial...