Extra brain Synonyms

Definitions for Extra


  • (adjective) being over what is needed
  • (adverb) to a great degree
  • (noun) an interchangeable part or piece of equipment that is kept on hand for replacement of an original

Definitions for Brain


  • (noun) a very smart person
  • (noun) the part of a person that feels, thinks, perceives, wills, and especially reasons
  • (noun) that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord