English Words Starting With N

• nitery

  nounRare / Archaic
  /ˈnaɪtəri/A nightclub or establishment providing evening entertainment.
• nitfly

  nounObsolete/Regional/Dialect
  /ˈnɪt.flaɪ/A regional term referring to a small, insignificant flying insect.
• nither

  verbVery Low (Obsolete / Regional Dialect)
  /ˈnɪðə(r)/An English dialectal verb meaning 'to shrivel or wither from cold', 'to cause to tremble or shiver (with cold or fright)', or 'to pinch or bind'.
• nitinol

  nounC2 / Very Low Frequency
  /ˈnɪtɪnɒl/A nickel-titanium alloy known for its shape memory and superelasticity.
• niton

  nounExtremely rare / Obsolete / Historical
  /ˈnaɪtɒn/A former name for the radioactive chemical element radon (Rn).
• nitpick

  adjectivenounverb-intransitiveverb-transitiveC1
  /ˈnɪt.pɪk/To find and criticise minor, trivial, or insignificant faults, often in an overly pedantic or fussy way.
• nitpicker

  nounC1
  /ˈnɪtˌpɪk.ə/A person who looks for or points out small, trivial faults, often in a fussy or pedantic manner.
• nitra

  nounVery Low
  /ˈnaɪtrə/(chemistry) relating to or containing the nitro group, NO₂
• nitramine

  nounC2 - Very Low Frequency / Specialist
  /ˈnaɪ.trə.miːn/A high-energy chemical compound containing nitrogen and oxygen, used as an explosive.
• nitramino group

  nounVery Low
  /ˌnaɪtrəˈmiːnəʊ ɡruːp/A functional group in organic chemistry with the structure R-N-NO₂, where a nitrogen atom is bonded to a nitro group (-NO₂) and to an organic substituent (R).
• nitrate

  nounverbverb-transitiveC1
  /ˈnaɪ.treɪt/A salt or ester of nitric acid, containing the anion NO₃⁻, commonly used as a chemical compound in fertilisers and explosives.
• nitrate film

  nounC2
  /ˈnaɪ.treɪt fɪlm/A historical type of photographic and cinematic film stock whose base was made from cellulose nitrate, a highly flammable and unstable material.
• nitratine

  nounC1/C2
  /ˈnaɪ.trə.tiːn/A rare natural mineral form of sodium nitrate (NaNO₃).
• nitrazepam

  nounLow
  /ˌnaɪtrəˈzɛpam/A sedative-hypnotic benzodiazepine medication used primarily for the short-term treatment of insomnia.
• nitre

  nounC2 / Very Rare
  /ˈnʌɪtə/A white crystalline mineral, potassium nitrate, used historically in making gunpowder and as a fertilizer.
• nitric acid

  nounC1
  /ˌnaɪ.trɪk ˈæs.ɪd/A strongly corrosive and toxic mineral acid with the chemical formula HNO₃, often used in the production of fertilizers, explosives, and other chemicals.
• nitric bacteria

  plural-nounLow
  /ˌnaɪ.trɪk bækˈtɪə.ri.ə/Bacteria that convert ammonia into nitrites as part of the nitrogen cycle.
• nitric oxide

  nounC2
  /ˌnaɪ.trɪk ˈɒk.saɪd/A colourless toxic gas with the chemical formula NO, produced naturally in the body as a signalling molecule that relaxes blood vessels and is involved in various physiological processes.
• nitride

  nounC2
  /ˈnʌɪtrʌɪd/A chemical compound of nitrogen with a more electropositive element or group, where nitrogen typically has a -3 oxidation state.
• nitriding

  nounC2 (Very Low Frequency)
  /ˈnaɪtrʌɪdɪŋ/A case-hardening process that involves diffusing nitrogen into the surface of a metal (typically steel or titanium) to create a hard, wear-resistant layer.

Showing 2101–2120 of 3475 words.