Definitions

1. adjective

relating to or resembling the habenula, a part of the brain

“The habenular nucleus is a small group of neurons that play a key role in regulating emotions, and habenular lesions have been linked to anxiety disorders.”

2. noun

a part of the brain that is involved in the regulation of emotional responses

“The habenula is a small region of the brain that has been found to play a role in the processing of emotions and the regulation of fear and anxiety.”

3. noun

a pair of small bodies in the diencephalon of some vertebrates, especially fish

“The habenulae are a pair of small bodies in the diencephalon of some fish, which are involved in the regulation of sensory information.”