pineal noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of pineal noun from the Oxford Advanced American Dictionary

pineal

noun

NAmE//ˈpaɪniəl//

, NAmE//paɪˈniəl//

, NAmE//ˈpɪniəl//

(also pineal gland) (anatomy)

a small organ in the brain that releases a hormone

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