a disease of the skeletal system, chiefly of children, resulting from absence of the normal effect of vitamin D in depositing calcium salts in the bone, and characterized by a softening and, often, bending of the bones: usually caused by a lack of vitamin D and insufficient exposure to sunlight
Origin of ricketsaltered ; from uncertain or unknown; perhaps Classical Greek rhachitis, rachitis
noun(used with a sing. or pl. verb)
A bone disease of children marked by bone demineralization and defective bone growth, caused usually by a deficiency of or an impaired metabolism of vitamin D. Also called rachitis.
Origin of ricketsOrigin unknown.