pineal eye

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pineal eye

pineal eye

n
(Zoology) an outgrowth of the pineal gland that forms an eyelike structure on the top of the head in certain cold-blooded vertebrates
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pineal eye - a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptilespineal eye - a sensory structure capable of light reception located on the dorsal side of the diencephalon in various reptiles
sense organ, sensory receptor, receptor - an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
betweenbrain, diencephalon, interbrain, thalmencephalon - the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon
References in periodicals archive ?
A variety of other species, including lizards, frogs and lampreys, have more or less elaborate pineal eyes.
In the 1960s scientists demonstrated an electrical response from pineal eyes when they were illuminated.
While most animal species do not have a true pineal eye, the pineal gland is sensitive to light in many nonmammalian species, including birds, fish, reptiles and amphibians.