a bone disease characterized by a softening of the bones, resulting from deficient bone calcification
See osteomalacia in American Heritage Dictionary 4
(ŏsˌtē-ō-mə-lāˈshə, -shē-ə)
noun
A disease occurring mostly in adult women that results from a deficiency in vitamin D or calcium and is characterized by a softening of the bones with accompanying pain and weakness.