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pineal body

(formerly) the pineal gland.
Origin of pineal body
1830-40 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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pineal body in Medicine

pineal body n.
A small, unpaired, flattened glandular structure lying in the depression between the two superior colliculi of the brain and secreting the hormone melatonin. Also called conarium, epiphysis, pineal gland.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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