[1] : The Collaborative International Dictionary of English v.0.48

potato \pota"to\, n.; pl. potatoes. sp. patata potato,
   batata sweet potato, from the native american name probably
   batata in hayti. bot.
      a a plant solanum tuberosum of the nightshade
          family, and its esculent farinaceous tuber, of which
          there are numerous varieties used for food. it is
          native of south america, but a form of the species is
          found native as far north as new mexico.
      b the sweet potato see below.
          1913 webster

   potato beetle, potato bug. zool.
      a a beetle doryphora decemlineata which feeds, both
          in the larval and adult stages, upon the leaves of the
          potato, often doing great damage. called also
          colorado potato beetle, and doryphora. see
          colorado beetle.
      b the lema trilineata, a smaller and more slender
          striped beetle which feeds upon the potato plant, bur
          does less injury than the preceding species.

   potato fly zool., any one of several species of blister
      beetles infesting the potato vine. the black species
      lytta atrata, the striped lytta vittata, and the
      gray lytta fabricii syn. lytta cinerea are the most
      common. see blister beetle, under blister.

   potato rot, a disease of the tubers of the potato, supposed
      to be caused by a kind of mold peronospora infestans,
      which is first seen upon the leaves and stems.

   potato weevil zool., an american weevil baridius
      trinotatus whose larva lives in and kills the stalks of
      potato vines, often causing serious damage to the crop.

   potato whisky, a strong, fiery liquor, having a hot, smoky
      taste, and rich in amyl alcohol fusel oil; it is made
      from potatoes or potato starch.

   potato worm zool., the large green larva of a sphinx, or
      hawk moth macrosila quinquemaculata; -- called also
      tomato worm. see illust. under tomato.

   seaside potato bot., ipomoea pes-caprae, a kind of
      morning-glory with rounded and emarginate or bilobed
      leaves. west indies

   sweet potato bot., a climbing plant ipomoea balatas
      allied to the morning-glory. its farinaceous tubers have a
      sweetish taste, and are used, when cooked, for food. it is
      probably a native of brazil, but is cultivated extensively
      in the warmer parts of every continent, and even as far
      north as new jersey. the name potato was applied to this
      plant before it was to the solanum tuberosum, and this
      is the "potato" of the southern united states.

   wild potato. bot.
      a a vine ipomoea pandurata having a pale purplish
          flower and an enormous root. it is common in sandy
          places in the united states.
      b a similar tropical american plant ipomoea
          fastigiata which it is thought may have been the
          original stock of the sweet potato.
          1913 webster
see also:
potatoes solanum tuberosum potato beetle potato bug doryphora decemlineata colorado potato beetle 
doryphora colorado beetle lema trilineata potato fly lytta atrata 
lytta vittata lytta fabricii lytta cinerea blister beetle blister 
potato rot peronospora infestans potato weevil baridius trinotatus potato whisky 
potato worm macrosila quinquemaculata tomato worm tomato seaside potato 
ipomoea pes-caprae sweet potato ipomoea balatas wild potato ipomoea pandurata 
ipomoea fastigiata 

[2] : The Collaborative International Dictionary of English v.0.48

colorado beetle \col`ora"do bee"tle\ zool.
   a yellowish beetle doryphora decemlineata, with ten
   longitudinal, black, dorsal stripes. it has migrated
   eastwards from its original habitat in colorado, and is very
   destructive to the potato plant; -- called also potato
   beetle and potato bug. see potato beetle.
   1913 webster
see also:
doryphora decemlineata potato beetle potato bug potato beetle 

[3] : WordNet (r) 2.0

potato bug
     n : black-and-yellow beetle that feeds in adult and larval
         stages on potato leaves; originally of eastern rocky
         mountains; now worldwide syn: colorado potato beetle,
         colorado beetle, potato beetle, leptinotarsa
         decemlineata
see also:
colorado potato beetle colorado beetle potato beetle leptinotarsa decemlineata 

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