[os-tee-oh-muh-ley-shuh, -shee-uh, -see-uh]

noun Pathology.

a condition characterized by softening of the bones with resultant pain, weakness, and bone fragility, caused by inadequate deposition of calcium or vitamin D.

Nearby words

  1. osteology,
  2. osteolysis,
  3. osteoma,
  4. osteoma medullare,
  5. osteoma spongiosum,
  6. osteomalacic,
  7. osteomalacic pelvis,
  8. osteomatoid,
  9. osteomere,
  10. osteometry

Origin of osteomalacia

From New Latin, dating back to 1815–25; see origin at osteo-, malacia

Related formsos·te·o·ma·la·cial, os·te·o·ma·lac·ic [os-tee-oh-muh-las-ik] /ˌɒs ti oʊ məˈlæs ɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for osteomalacic



a disease in adults characterized by softening of the bones, resulting from a deficiency of vitamin D and of calcium and phosphorus
Derived Formsosteomalacial or osteomalacic (ˌɒstɪəʊməˈlæsɪk), adjective

Word Origin for osteomalacia

C19: from New Latin, from osteo- + Greek malakia softness

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for osteomalacic




Of, relating to, or characterized by osteomalacia.




A bone disease characterized by bone demineralization due to deficiency or impaired metabolism of vitamin D or phosphates. adult rickets late rickets

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.