Definition of epithalamus in English:

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Pronunciation: /ˌepəˈTHaləməs/

noun (plural epithalami /-ˌmī/)

A part of the dorsal forebrain including the pineal gland and a region in the roof of the third ventricle of the brain.
Example sentences
  • In addition to the latter, the following components of the epithalamus can be distinguished: the habenular commissure, the pineal body, and the posterior commissure.
  • Parts of the epithalamus that are visible in a mid-sagittal view of the gross brain include the pineal body or gland, the habenula, and the stria medullaris.

For editors and proofreaders

Syllabification: ep·i·thal·a·mus

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