Dictionary.com
Thesaurus.com

brains

  • plural
    of brain.
    brain
    noun
    the part of the central nervous system enclosed in the cranium of humans and other vertebrates, consisting of a soft, convoluted mass of gray and white matter and serving to control and coordinate the mental and physical actions.
  • present tense form
    of brain (3rd person singular).
    brain
    noun
    the part of the central nervous system enclosed in the cranium of humans and other vertebrates, consisting of a soft, convoluted mass of gray and white matter and serving to control and coordinate the mental and physical actions.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A major new study has uncovered important differences in how the brains of autistic children respond to human faces.

From Science Daily ● Oct. 28, 2026

But the most intriguing discovery came when researchers compared the brains of people who had developed dementia with those who had remained mentally sharp despite Alzheimer's pathology.

From Science Daily ● Oct. 27, 2026

Researchers want to understand what happens inside the brains of spiders and insects during sleep, and whether different sleep stages contribute to learning and other mental processes.

From Science Daily ● Oct. 27, 2026

The findings suggest that immature neurons in resilient brains may be better equipped to withstand these harmful conditions.

From Science Daily ● Oct. 27, 2026

Ah, young sir, the Szekelys—and the Dracula as their heart’s blood, their brains, and their swords—can boast a record that mushroom growths like the Hapsburgs and the Romanoffs can never reach.

From "Dracula" by Bram Stoker