from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Chronic inflammation of the lungs caused by excessive inhalation of dust containing iron salts or particles.

from The Century Dictionary.

  • noun A deposition of iron pigment in any of the tissues of the body.
  • noun Pneumonoconiosis in which the particles are metallic, especially iron.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Med.) A sort of pneumonia occuring in iron workers, produced by the inhalation of particles of iron.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun medicine A form of pneumoconiosis caused by the inhalation of iron dust
  • noun medicine The accumulation of hemosiderin in various organs of the body by people with a diet rich in iron

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun fibrosis of the lung caused by iron dust; occurs among welders and other metal workers


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