brain > define

noun

• That part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord.
  • synonyms: encephalon
• Mental ability.
  • usage: "he's got plenty of brains but no common sense"
  • synonyms: brainpower, learning ability, mental capacity, mentality, wit
• That which is responsible for one's thoughts and feelings; the seat of the faculty of reason.
  • usage: "his mind wandered"; "I couldn't get his words out of my head"
  • synonyms: mind, head, psyche, nous
• Someone who has exceptional intellectual ability and originality.
  • usage: "Mozart was a child genius"; "he's smart but he's no Einstein"
  • synonyms: genius, mastermind, brainiac, Einstein
• The brain of certain animals used as meat.

verb

• Hit on the head.
• Kill by smashing someone's skull. .

• (n.) The organ or seat of intellect; hence, the understanding.
• (v.t.) To dash out the brains of; to kill by beating out the brains. Hence, Fig.: To destroy; to put an end to; to defeat.
• (v.t.) To conceive; to understand.
• (n.) The anterior or cephalic ganglion in insects and other invertebrates.
• (n.) The whitish mass of soft matter (the center of the nervous system, and the seat of consciousness and volition) which is inclosed in the cartilaginous or bony cranium of vertebrate animals. It is simply the anterior termination of the spinal cord, and is developed from three embryonic vesicles, whose cavities are connected with the central canal of the cord; the cavities of the vesicles become the central cavities or ventricles, and the walls thicken unequally and become the three segments, the fore-, mid-, and hind-brain.
• (n.) The affections; fancy; imagination.