from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A deficiency disease resulting from a lack of vitamin D or calcium and from insufficient exposure to sunlight, characterized by defective bone growth and occurring chiefly in children. Also called rachitis.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A disorder of infancy and early childhood caused by a deficiency of vitamin D, causing soft bones.

from the GNU version of the Collaborative International Dictionary of English

  • A disease which affects children, and which is characterized by a bulky head, crooked spine and limbs, depressed ribs, enlarged and spongy articular epiphyses, tumid abdomen, and short stature, together with clear and often premature mental faculties. The essential cause of the disease appears to be the nondeposition of earthy salts in the osteoid tissues. Children afflicted with this malady stand and walk unsteadily. Called also rachitis.

from The Century Dictionary and Cyclopedia

  • n. A disease, technically called rachitis. See rachitis, .

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

  • n. childhood disease caused by deficiency of vitamin D and sunlight associated with impaired metabolism of calcium and phosphorus


Origin unknown.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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