pineal gland
–noun
| a small, cone-shaped endocrine organ in the posterior forebrain, secreting melatonin and involved in biorhythms and gonadal development. |
| Dictionary.com Unabridged (v 1.1) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006. |
Pineal gland
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| pineal gland
n. A small, cone-shaped organ in the brain of most vertebrates that secretes the hormone melatonin. Also called epiphysis, pineal body, pineal organ. |
| The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
| pineal gland | |
noun | |
| a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin |
| WordNet® 3.0, © 2006 by Princeton University. |
| pineal gland
A small gland located near the brain and primarily involved in the production and secretion of the hormone melatonin, which regulates circadian rhythms in many animals, including humans. |
| The American Heritage® Science Dictionary Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
pineal gland n.
See pineal body.
| The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
Main Entry: pineal gland
Function: noun
: a small body that arises from the roof of the third ventricle and is enclosed by the pia mater and that functions primarily asan endocrine gland that produces melatonin called also pineal, pineal body, pineal organ
| Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc. |
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