Medical Dictionary

pineal gland

noun

Medical Definition of PINEAL GLAND

:  a small body that arises from the roof of the third ventricle and is enclosed by the pia mater and that functions primarily as an endocrine gland that produces melatonin—called also pineal, pineal body, pineal organ

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May 27, 2015
riot act Hear it
a vigorous reprimand or warning
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