Pineal Gland

Pronunciation: /ˈpaɪniəl ɡlænd/

Definitions of pineal gland

noun a small endocrine gland in the brain that produces and regulates hormones such as melatonin

Example Sentences

A1 The pineal gland is a small gland in the brain.

A2 The pineal gland produces melatonin, a hormone that regulates sleep.

B1 Some people believe that the pineal gland is the 'third eye' and is responsible for spiritual experiences.

B2 Research has shown a link between the pineal gland and circadian rhythms.

C1 The pineal gland is part of the endocrine system and plays a key role in regulating various bodily functions.

C2 There are ongoing studies to explore the potential role of the pineal gland in various neurological disorders.

Examples of pineal gland in a Sentence

formal The pineal gland is a small endocrine gland located in the brain that produces melatonin.

informal I heard that the pineal gland is responsible for regulating our sleep-wake cycle.

slang They say the pineal gland is like our body's internal clock.

figurative Some believe the pineal gland is the 'third eye' that connects us to spiritual realms.

Grammatical Forms of pineal gland

• plural: pineal glands
• comparative: more pineal
• superlative: most pineal
• present tense: pineal gland
• future tense: will pineal gland
• perfect tense: has pineal gland
• continuous tense: is pineal glanding
• singular: pineal gland
• positive degree: pineal gland
• infinitive: to pineal gland
• gerund: pineal glanding
• participle: pineal glanded

Origin and Evolution of pineal gland

First Known Use: 1601 year

Language of Origin: Latin

Story behind the word: The term 'pineal gland' originates from the Latin word 'glandula pinealis', which translates to 'pine cone-shaped gland'.

Evolution of the word: The pineal gland was first described by the ancient Greek philosopher Galen in the 2nd century AD. However, it was not until the 17th century that René Descartes proposed its role in the human body as the 'seat of the soul'. Over time, the understanding of the pineal gland has evolved from being considered a mystical organ to being recognized as an important endocrine gland that produces melatonin.