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An American Dictionary of the English Language

by Noah Webster

Revised and enlarged (Goodrich & Porter)

Springfield, Mass. · G. & C. Merriam · 1865

Entries
95,912
Pages
1,538
Illustrations
2,133

Look up a word as the writers of the time used it.

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  1. Pȳr'o-a-çēt'ic or Pȳr'o-a-cē'tic, a.p. 1067(Chem.) Pertaining to, or obtained from, acetic acid, when subjected to the action of heat under certain circumstances. Pyroacetic spirit, a limpid, colorless liquid, of a peculiar smell and pungent…
  2. Pȳr'o-āc'id, n.p. 1067(Chem.) An acid obtained by subjecting another acid to the action of heat. Brande.
  3. Pȳr'o-chlōre, n.p. 1067(Min.) A mineral usually of a yellowish or brownish color, consisting chiefly of columbic acid, lime, and protoxide of cerium, and sometimes titanic acid with, or in place of, the columbic acid; — so…
  4. Pȳr'o-çit'rie, a.p. 1067(Chem.) Pertaining to, or obtained from, citric acid, when subjected to the action of heat; — said of a certain acid.
  5. Pȳr'o-e-lēc'tric, n.p. 1067That which becomes electrically polar when heated; thermo-electric.
  6. Pȳr'o-e-léc'trie, a.p. 1067Pertaining to, or dependent on, pyro-electricity; receiving electric polarity when heated.
  7. Pȳr'/o-e-lec-trĭ-ty, n.p. 1067Electricity developed by means of heat; the science which treats of electricity thus developed; thermo-electricity.
  8. Pȳr'o-gāl'lic, a.p. 1067(Chem.) Pertaining to, or obtained from, tannic or gallic acid, when exposed to intense heat or sublimation. Pyrogallic acid, an acid which occurs in shining scales of a bitter and astringent taste…
  9. Pȳr'o-gen, n.p. 1067Electricity. [Rare.]
  10. Pȳ-rŏg'e-noūs, a.p. 1067Produced by fire; igneous. Mantell.
  11. Pȳ-rōl'a-try, n.p. 1067The worship of fire. Young.
  12. Pȳr'o-lig'ne-ōūs or Pȳr'o-lig'nie, a.p. 1067(Chem.) Generated or procured by the distillation of wood; — applied to the acid obtained by the distillation of wood, which is an acetic acid holding in solution oily impurities.
  13. Pȳr'/o-līg'nōūs, a.p. 1067The same as PYROLIGNEOUS.
  14. Pȳr'o-līth'ic, a.p. 1067The same as PYRO-URIC. See PYRO-URIC.
  15. Pȳ-rōl'o-gĭst, n.p. 1067One who is versed in the doctrines of heat. 2. An investigator of the laws of heat.
  16. Pȳ-rŏl'o-gy, n.p. 1067A treatise on heat; or the natural history of heat, latent and sensible.
  17. Pȳr'o-lū'āsite, n.p. 1067(Min.) A black ore of manganese, often used in bleaching.
  18. Pȳr'o-mā'late, n.p. 1067(Chem.) A salt formed by the union of pyromalic acid and a base.
  19. Pȳr'/o-mā'lic, a.p. 1067(Chem.) Pertaining to, or obtained from, malic acid when subjected to the action of heat; — said of a certain acid, obtained by heating malic acid in a close vessel.
  20. Pȳr'o-mān'cy, n.p. 1067Divination by fire.
  21. Pȳr'o-mān’tic, a.p. 1067Pertaining to pyromancy.
  22. Pȳr'o-mān'tie, n.p. 1067One who pretends to divine by fire. Herbert.
  23. Pȳ-rōm'e-ter, n.p. 1067An instrument for measuring degrees of heat above those indicated by the mercurial thermometer, constructed usually on the principle of registering, or measuring, by means of multiplying levers and a…
  24. Pȳr'o-mĕt'rĭc or Pȳr'o-mĕt'rĭc-al, a.p. 1068Pertaining to the pyrometer or to its use; as, pyrometrical instruments; obtained by means of a pyrometer; as, pyrometrical measurements.
  25. Pȳ-rŏm'e-try, n.p. 1068The act or art of measuring degrees of heat, or the expansion of bodies by heat.
  26. Pŷr'o-mōr'phite, n.p. 1068(Min.) The mineral phosphate of lead, occurring in bright green and brown hexagonal crystals and masses;—so called in reference to the crystalline form which the globule, produced under the…
  27. Pȳr'o-mōr'phoŭs, a.p. 1068(Min.) Having the property of crystallizing by the agency of fire.
  28. Pȳr'o mū'cate, n.p. 1068(Chem.) A salt formed by the union of pyromucic acid and a base.
  29. Pȳr'o-mū'çic, a.p. 1068(Chem.) Pertaining to, or obtained from, mucic acid when distilled;—said of a certain acid.
  30. Pȳr'o-nŏm'ies, n. sing.p. 1068The science of heat. [See Note under MATHEMATICS.]
  31. Pȳr'ōpe, n.p. 1068(Min.) A mineral regarded as a variety of garnet, occurring in small masses or grains, never in crystals. Its color is a poppy or blood red, frequently with a tinge of orange.
  32. Pȳr'o-phāne, n.p. 1068(Min.) A mineral which in its natural state is opaque, but is said to change its color and become transparent by heat.
  33. Pȳ-rōph'a-noŭs, a.p. 1068Rendered transparent by heat.
  34. Pȳr'o-phōr'ic, a.p. 1068Pyrophorous.
  35. Pȳ-rŏph'o-rōŭs, a.p. 1068Pertaining to, or resembling, pyrophorus.
  36. Pȳ-rŏph'o-rŭs, n.p. 1068(Chem.) A substance which takes fire on exposure to air, or which maintains or retains light. It is best made by heating together alum, pearl-ashes, and lamp-black. Silliman.
  37. Pȳ-rōph'yl-līte or Pȳr'o-phŷl'līte, n.p. 1068(Min.) A mineral usually of a white or greenish color and pearly luster, consisting chiefly of the hydrous silicate of alumina. Dana.
  38. Pȳ-rôr’thīte, n.p. 1068(Min.) An impure variety of orthite containing bitumen.
  39. Pȳr'o-scōpe, n.p. 1068An instrument for measuring the intensity of heat radiating from a fire, or the cooling influence of bodies. It is a differential thermometer, having one bulb coated with gold or silver leaf.
  40. Pȳ-rō'sis, n.p. 1068(Med.) A disease of the stomach, attended with a sensation of burning in the epigastrium, accompanied with an eructation of watery fluid, usually insipid, but sometimes acrid;—commonly called…
  41. Pȳ-rŏs'ma-līte, n.p. 1068(Min.) A mineral usually of a pale brown, or of a gray or grayish-green color, consisting chiefly of the hydrous silicate of iron and manganese;—so called from the odor given off before the…
  42. Pȳr'o-sōme, n.p. 1068(Zoöl.) A molluscous animal of the genus Pyrosoma;—so called from its emitting a brilliant phosphoric light. Baird.
  43. Pȳr'/o-tar-tär'/ic, a.p. 1068(Chem.) Pertaining to, or obtained from, tartaric acid when heated in a close vessel; as, pyrotartaric acid.
  44. Pŷr/o-tār'trate, n.p. 1068(Chem.) A salt formed by the combination of pyrotartaric acid with a base.
  45. Pŷr'o-tēch'ni-an, n.p. 1068A pyrotechnist.
  46. Pȳr/o-tĕch'nic or Pȳr/o-tĕch'nic-al, a.p. 1068Pertaining to fireworks, or the art of forming them.
  47. Pŷr'o-tech-nī'cian, n.p. 1068A pyrotechnist.
  48. Pŷr'o-tēch'nies, n. sing.p. 1068The art of making fireworks, especially for purposes of public amusement or rejoicing; pyrotechny. [See Note under MATHEMATICS.]
  49. Pŷr/o-tēch'nist, n.p. 1068One skilled in pyrotechny; one who manufactures fireworks. Stevens.
  50. Pŷr'o-tēch'ny, n.p. 1068The same as PYROTECHNICS.
  51. Py-rōth'o-nīde, n.p. 1068(Med.) A kind of empyreumatic oil produced by the combustion of textures of hemp, linen, or cotton in a copper vessel, and formerly used as a remedial agent. Dunglison.
  52. Pȳ-rŏt'ic, a.p. 1068Caustic. See CAUSTIC.
  53. Pȳ-rŏt'ic, n.p. 1068A caustic medicine.
  54. Pŷr/o-ū'rie, n.p. 1068(Chem.) Pertaining to, or obtained from, uric acid when subjected to distillation; as, pyro-uric acid.
  55. Pŷr'ox-ēne, n.p. 1068(Min.) A mineral; augite. See AUGITE. Dana.
  56. Pŷr'ox-ēn'ic, a.p. 1068Containing pyroxene; composed chiefly of pyroxene. Dana.
  57. Pŷ-rŏx'yle, n.p. 1068The same as PYROXYLINE.
  58. Pŷr'ox-ŷl'ic, a.p. 1068(Chem.) Obtained by the destructive distillation of wood; as, pyroxylic spirit. Gregory.
  59. Pȳ-rŏx'y-līne, n.p. 1068(Chem.) An explosive substance obtained by immersing vegetable fiber in nitric and sulphuric acid, or in a mixture of nitric and sulphuric acids, and then suffering it to dry; gun-cotton. Dana.
  60. Pŷr'rhic, n.p. 1068(Pros.) A foot consisting of two short syllables. 2. An ancient military dance, to the accompaniment of the flute, its time being very quick and light.