ox·al·ic acid /(ˌ)ɑkˈsælɪk-/



 ox·al·ic acid /(ˌ)ɑkˌsælɪk-/ 名詞



 Lem·on n.
 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.
 2. The tree which bears lemons; the lemon tree.
 Lemon grass Bot., a fragrant East Indian grass (Andropogon Shœnanthus, 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.]

 ◄ ►


 Ox·al·ic a.  Chem. Pertaining to, derived from, or contained in, sorrel, or oxalis; specifically, designating an acid found in, and characteristic of, oxalis, and also certain plant of the Buckwheat family.
 Oxalic acid Chem., a dibasic acid (HO.CO.CO.OH), existing combined in oxalis as an acid potassium oxalate, and in many plant tissues as the calcium oxalate. It is prepared on a large scale, by the action of fused caustic soda or potash on sawdust, as a white crystalline substance, which has a strong acid taste, and is poisonous in large doses. It is used in dyeing, calico printing, bleaching flax and straw, the preparation of formic acid, and in salts of lemon for removing ink stains, mold, etc.

 ◄ ►


 oxalic acid
      n : a toxic colorless crystalline organic acid found in oxalis
          and other plants; used as a bleach and rust remover and
          in chemical analysis [syn: ethanedioic acid]