Turnip \Tur"nip\ (t[^u]r"n[i^]p), n. [OE. turnep; probably fr.
   turn, or F. tour a turn, turning lathe + OE. nepe a turnip,
   AS. n[=ae]pe, L. napus. Cf. {Turn}, v. t., {Navew}.] (Bot.)
   The edible, fleshy, roundish, or somewhat conical, root of a
   cruciferous plant ({Brassica campestris}, var. Napus); also,
   the plant itself. [Formerly written also {turnep}.]
   
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   {Swedish turnip} (Bot.), a kind of turnip. See {Ruta-baga}.
      

   {Turnip flea} (Zool.), a small flea-beetle ({Haltica,  striolata} syn. {Phyllotreta striolata}), which feeds upon
      the turnip, and often seriously injures it. It is black
      with a stripe of yellow on each elytron. The name is also
      applied to several other small insects which are injurious
      to turnips. See Illust. under {Flea-beetle}.

   {Turnip fly}. (Zool.)
   (a) The turnip flea.
   (b) A two-winged fly ({Anthomyia radicum}) whose larvae live
       in the turnip root.
       
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