Brain (noun) Definition, Meaning & Examples

noun
  1. 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.
  2. (in many invertebrates) a part of the nervous system more or less corresponding to the brain of vertebrates.
  3. understanding; intellectual power; intelligence.
  4. the brain as the center of thought, understanding, etc.; mind; intellect.
  5. a member of a group who is regarded as its intellectual leader or planner: The junior partner is the brains of the firm.
  6. a very intelligent or brilliant person.
  7. Informal.
    • the controlling or guiding mechanism in a computer, robot, pacemaker, etc.
    • the part of a computer system for coordination or guidance, as of a missile.
verb (used with object)
  1. to smash the skull of.
  2. to hit or bang (someone) on the head.
Idioms
  1. to try very hard to understand and work out a problem, remember something, etc.: She beat her brains out studying for the exam.
  2. to have an obsession; be occupied with: Lately I seem to have food on the brain.
  3. to obtain information by questioning another person rather than by seeking it independently: He refused to prepare for the exam but counted on being able to pick his roommate's brains.
noun
  1. the soft convoluted mass of nervous tissue within the skull of vertebrates that is the controlling and coordinating centre of the nervous system and the seat of thought, memory, and emotion. It includes the cerebrum, brainstem, and cerebellum
  2. the main neural bundle or ganglion of certain invertebrates
  3. intellectual ability
  4. shrewdness or cunning
  5. an intellectual or intelligent person
  6. a person who plans and organizes an undertaking or is in overall control of an organization, etc
  7. an electronic device, such as a computer, that performs apparently similar functions to the human brain
  8. constantly in mind
  9. to obtain information or ideas from someone
verb (tr)
  1. to smash the skull of
  2. to hit hard on the head
    Brain (noun) Definition, Meaning & Examples

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