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

sole \sole\, n. f. sole, l. solea; -- so named from its flat
   shape. see sole of the foot. zool.
   a any one of several species of flatfishes of the genus
       solea and allied genera of the family soleidae,
       especially the common european species solea
       vulgaris, which is a valuable food fish.
   b any one of several american flounders somewhat resembling
       the true sole in form or quality, as the california sole
       lepidopsetta bilineata, the long-finned sole
       glyptocephalus zachirus, and other species.
       1913 webster

   lemon, or french, sole zool., a european species of
      sole solea pegusa.

   smooth sole zool., the megrim.
      1913 webster
see also:
sole solea soleidae solea vulgaris lepidopsetta bilineata glyptocephalus zachirus 
lemon french sole solea pegusa smooth sole 

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

lemon \lem"on\ le^m"u^n, n. f. limon, per. limacm=un;
   cf. ar. laim=un, sp. limon, it. limone. cf. lime a
   fruit.
   1913 webster
   1. bot. an oval or roundish fruit resembling the orange,
      and containing a pulp usually intensely acid. it is
      produced by a tropical tree of the genus citrus, the
      common fruit known in commerce being that of the species
      citrus limonum or citrus medica var. limonum. there
      are many varieties of the fruit, some of which are sweet.
      1913 webster

   2. the tree which bears lemons; the lemon tree.
      1913 webster

   lemon grass bot., a fragrant east indian grass
      andropogon shoenanthus, and perhaps other allied
      species, which yields the grass oil used in perfumery.

   lemon sole zool., a yellow european sole solea
      aurantiaca.

   salts of lemon chem., a white crystalline substance,
      inappropriately named, as it consists of an acid potassium
      oxalate and contains no citric acid, which is the
      characteristic acid of lemon; -- called also salts of
      sorrel. it is used in removing ink stains. see oxalic
      acid, under oxalic. colloq.
      1913 webster
see also:
lime citrus citrus limonum citrus medica lemon grass andropogon shoenanthus 
lemon sole solea aurantiaca salts of lemon salts of sorrel oxalic acid 
oxalic 

[3] : WordNet (r) 2.0

lemon
     n 1: yellow oval fruit with juicy acidic flesh
     2: a strong yellow color syn: gamboge, lemon yellow, maize
     3: a small evergreen tree that originated in asia but is widely
        cultivated for its fruit syn: lemon tree, citrus limon
     4: a distinctive tart flavor characteristic of lemons
     5: an artifact especially an automobile that is defective or
        unsatisfactory syn: stinker
see also:
gamboge lemon yellow maize lemon tree citrus limon stinker 

[4] : Moby Thesaurus II by Grady Ward, 1.0

76 moby thesaurus words for "lemon":
   acid, acidulant, aureate, auric, beige, bomb,
   bread-and-butter pickle, buff, buff-yellow, bust, canary,
   canary-yellow, chokecherry, citron, citron-yellow, crab apple,
   cream, creamy, dill pickle, dud, dull thud, ecru, fallow, fizzle,
   flat failure, flaxen, flop, floperoo, frost, gilded, gilt, gold,
   gold-colored, golden, green apple, lemon-yellow, lime, loser,
   luteolous, lutescent, ocherish, ocherous, ochery, ochreous,
   ochroid, ochrous, ochry, or, pickle, primrose, primrose-colored,
   primrose-yellow, saffron, saffron-colored, saffron-yellow, sallow,
   sand-colored, sandy, sour, sour balls, sour cream, sour grapes,
   sour pickle, sourdough, straw, straw-colored, total loss, turkey,
   verjuice, vinegar, washout, xanthic, xanthous, yellow, yellowish,
   yogurt

Lemon >> L Words
Lemon, definition of term: Lemon
lemon_pag1.html

Lemon Zest >> L Words
Lemon Zest, definition of term: Lemon Zest
lemon+zest_pag1.html

Lemon Tree >> L Words
Lemon Tree, definition of term: Lemon Tree
lemon+tree_pag1.html

Lemon Grass >> L Words
Lemon Grass, definition of term: Lemon Grass
lemon+grass_pag1.html

Lemon Balm >> L Words
Lemon Balm, definition of term: Lemon Balm
lemon+balm_pag1.html

Lemon Peel >> L Words
Lemon Peel, definition of term: Lemon Peel
lemon+peel_pag1.html