English Words Starting With N

• neuropeptide

  nounC2
  /ˌnjʊərəʊˈpɛptaɪd/A small protein-like molecule used by neurons to communicate with each other.
• neuropharmacology

  nounC2
  /ˌnjʊərəʊˌfɑːməˈkɒlədʒi/The scientific study of drugs that affect the nervous system and how they influence brain function, behavior, and mental processes.
• neurophysiology

  nounC1/C2
  /ˌnjʊərəʊˌfɪziˈɒlədʒi/The scientific study of the functions and activities of the nervous system, including how neurons generate and transmit signals.
• neuropil

  nounVery Low / C2+ / Technical
  /ˈnjʊərə(ʊ)pɪl/The dense network of neuronal and glial processes (axons, dendrites, glial branches) and synapses where most neural communication occurs in the brain and nervous system.
• neuroplasm

  nounVery low (extremely specialized scientific term)
  /ˈnjʊərəʊˌplæz(ə)m/The cytoplasm of a neuron.
• neuroplasticity

  nounC2 (Upper Advanced)
  /ˌnjʊərəʊplæsˈtɪsɪti/The brain's ability to reorganize itself by forming new neural connections throughout life.
• neuropsychiatry

  nounLow (C2/Professional)
  /ˌnjʊərəʊsaɪˈkaɪətri/The branch of medicine that deals with the relationship between psychiatric disorders and the structure and function of the brain and nervous system.
• neuropsychology

  nounC2
  /ˌnjʊərəʊsaɪˈkɒlədʒi/The scientific study of the relationship between brain function and behaviour.
• neuropteran

  adjectivenounC2
  /njʊəˈrɒptərən/An insect belonging to the order Neuroptera, characterized by two pairs of large, net-veined wings.
• neuroscience

  nounC1/C2
  /ˈnjʊərəʊˌsaɪəns/The scientific study of the nervous system, especially the brain.
• neurosecretion

  nounC2 / Extremely Rare / Specialized
  /ˌnjʊərəʊsɪˈkriːʃ(ə)n/The process by which certain nerve cells (neurons) produce and release chemical messengers (hormones) directly into the bloodstream or surrounding tissue.
• neurosis

  nounC1
  /njʊˈrəʊsɪs/A mental condition involving persistent anxiety, distress, or maladaptive behavior patterns without clear organic cause, often stemming from unresolved conflict or stress.
• neurosurgery

  nounC2
  /ˈnjʊər.əʊˌsɜː.dʒər.i/A medical specialty involving surgical procedures on the nervous system, including the brain, spinal cord, and peripheral nerves.
• neurosyphilis

  nounVery Low
  /ˌnjʊərəʊˈsɪfɪlɪs/A severe infection of the central nervous system caused by the bacterium Treponema pallidum, occurring as a late complication of untreated syphilis.
• neurotic

  adjectivenounC1
  /njʊəˈrɒtɪk/Suffering from, caused by, or relating to neurosis; exhibiting excessive anxiety, emotional instability, or obsessive behaviour.
• neuroticism

  nounC1
  /njʊəˈrɒt.ɪ.sɪ.zəm/A personality trait characterized by a tendency toward anxiety, emotional instability, and negative emotions like worry, fear, and sadness.
• neurotomy

  nounC2+
  /njʊəˈrɒtəmi/The surgical cutting of a nerve.
• neurotoxicity

  nounC2
  /ˌnjʊə.rəʊ.tɒkˈsɪ.sə.ti/The quality of being poisonous or harmful to nerve cells (neurons).
• neurotoxicology

  nounVery Low
  /ˌnjʊərəʊˌtɒksɪˈkɒlədʒi/The scientific study of the harmful effects of chemical substances on the structure and function of the nervous system.
• neurotoxin

  nounC1
  /ˈnjʊərəʊˌtɒksɪn/A poisonous substance that specifically damages or destroys nerve tissue.

Showing 1301–1320 of 3475 words.