We found 28 dictionaries that define the word pineal gland:

General (16 matching dictionaries)

1. pineal gland: Merriam-Webster
2. pineal gland: Oxford Learner's Dictionaries
3. pineal gland: American Heritage Dictionary of the English Language
4. pineal gland: Collins English Dictionary
5. pineal gland: Vocabulary.com
6. pineal gland: Wordnik
7. Pineal gland: InfoVisual Visual Dictionary
8. pineal gland: Wiktionary
9. pineal gland: The Wordsmyth English Dictionary-Thesaurus
10. pineal gland: Infoplease Dictionary
11. pineal gland: Dictionary.com
12. Pineal Gland, Pineal gland: Wikipedia, the Free Encyclopedia
13. pineal gland: Rhymezone
14. pineal gland: FreeDictionary.org
15. pineal gland: Mnemonic Dictionary
16. pineal gland: TheFreeDictionary.com

Business (1 matching dictionary)

17. pineal gland: Legal dictionary

Computing (1 matching dictionary)

18. pineal gland: Encyclopedia

Medicine (10 matching dictionaries)

19. pineal gland: Merriam-Webster Medical Dictionary
20. Dorland's Illustrated Medical Dictionary (No longer online)
21. Pineal gland: MedTerms.com Medical Dictionary
22. Medical Dictionary (No longer online)
23. online medical dictionary (No longer online)
24. pineal gland: Dictionary of Cancer Terms
25. Sleep Terms (No longer online)
26. pineal gland: Medical dictionary
27. Pineal gland: Drug Medical Dictionary
28. Hyperdictionary (No longer online)

(Note: See pineal_glands as well.)

Definitions from Wiktionary (pineal gland) ▸ noun:  (anatomy, neuroanatomy) A small, pinecone-shaped endocrine gland found near the centre of the brain that produces melatonin. Similar: pineal body, pituitary body, Meckel's ganglion, ganglion, globus pallidus, telencephalon, neuromelanin, locus coeruleus, endbrain, prosencephalon, more... Opposite: pituitary gland, hypothalamus, thyroid gland Phrases: Pineal gland cyst, more... Adjectives: hypothalamohypophyseal, adenohypophyseal, pituitary, neurohypophyseal, hypophyseal, ganglionic, adrenocortical, meningeal, hypophysiotropic, hypothalamohypophysial, parathyroid ▸ Words similar to pineal gland ▸ Usage examples for pineal gland ▸ Idioms related to pineal gland ▸ Wikipedia articles (New!) ▸ Words that often appear near pineal gland ▸ Rhymes of pineal gland ▸ Invented words related to pineal gland