[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

tomato \toma"to\, n.; pl. tomatoes. sp. or pg. tomate, of
   american indian origin; cf. mexican tomail. bot.
   the fruit of a plant of the nightshade family lycopersicum
   esculentun; also, the plant itself. the fruit, which is
   called also love apple, is usually of a rounded, flattened
   form, but often irregular in shape. it is of a bright red or
   yellow color, and is eaten either cooked or uncooked.
   1913 webster

   tomato gall zool., a large gall consisting of a mass of
      irregular swellings on the stems and leaves of grapevines.
      they are yellowish green, somewhat tinged with red, and
      produced by the larva of a small two-winged fly
      lasioptera vitis.

   tomato sphinx zool., the adult or imago of the tomato
      worm. it closely resembles the tobacco hawk moth. called
      also tomato hawk moth. see illust. of hawk moth.

   tomato worm zool., the larva of a large hawk moth
      manduca quinquemaculata, protoparce quinquemaculata,
      sphinx quinquemaculata, or macrosila quinquemaculata
      which feeds upon the leaves of the tomato and potato
      plants, often doing considerable damage. called also
      tomato hornworm and potato worm, and in the southern
      u. s. tobacco fly.
      1913 webster +pjc
see also:
tomatoes lycopersicum esculentun love apple tomato gall lasioptera vitis tomato sphinx 
tomato worm tomato hawk moth hawk moth tomato worm manduca quinquemaculata 
protoparce quinquemaculata sphinx quinquemaculata macrosila quinquemaculata tomato hornworm potato worm 
tobacco fly 

[3] : WordNet (r) 2.0

potato worm
     n : large green white-striped hawkmoth larva that feeds on
         tomato and potato plants; similar to tobacco hornworm
         syn: tomato hornworm, manduca quinquemaculata
see also:
tomato hornworm manduca quinquemaculata 

Potato >> P Words
Potato, definition of term: Potato
potato_pag1.html

Potato Chip >> P Words
Potato Chip, definition of term: Potato Chip
potato+chip_pag1.html

Parasitic Worm >> P Words
Parasitic Worm, definition of term: Parasitic Worm
parasitic+worm_pag1.html

Meal Worm >> M Words
Meal Worm, definition of term: Meal Worm
meal+worm_pag1.html

Internet Worm >> I Words
Internet Worm, definition of term: Internet Worm
internet+worm_pag1.html

Little Potato >> L Words
Little Potato, definition of term: Little Potato
little+potato_pag1.html

Guinea Worm >> G Words
Guinea Worm, definition of term: Guinea Worm
guinea+worm_pag1.html