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Definition of Pineal eye
1. Noun. A sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles.
Exact synonyms: Third Eye
Generic synonyms: Receptor, Sense Organ, Sensory Receptor
Group relationships: Betweenbrain, Diencephalon, Interbrain, Thalmencephalon
Generic synonyms: Receptor, Sense Organ, Sensory Receptor
Group relationships: Betweenbrain, Diencephalon, Interbrain, Thalmencephalon
Medical Definition of Pineal eye
1. A non-image-forming, photoreceptive eye in or near the median line in certain crustacea and lower vertebrates; homologue of pineal gland in higher forms. Synonym: epiphysial eye, parietal eye. (05 Mar 2000)