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Noun: nit  nit
  1. A luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
     
  2. Egg or young of an insect parasitic on mammals especially a sucking louse; often attached to a hair or item of clothing
     
  3. [Brit] A person who lacks good judgment
    - fool, sap, muggins [Brit], tomfool, jughead [N. Amer], meathead, juggins [Brit], boofhead [Austral], donkey, charlie [Brit], mampara [S.Africa], galah [Austral], drongo [Austral, NZ], moegoe [S.Africa]

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Derived forms: nits

Type of: egg, luminance unit, simple, simpleton

Encyclopedia: Nit