adjective (a)

• of or relating to the nervous system(adj.pert)

  Example:
  Neural disorder.
  

  Synonym:
  nervous
  

  source: wordnet30
• of or relating to neurons(adj.pert)

  Example:
  Neural network.
  

  Synonym:
  neuronal, neuronic
  

  source: wordnet30
• relating to the nerves or nervous system; taining to, situated in the region of, or on the side with, the neural, or cerebro-spinal, axis; -- opposed to hemal. As applied to vertebrates, neural is the same as dorsal; as applied to invertebrates it is usually the same as ventral. Cf. Hemal.(adjective)

  source: webster1913