Experimental Factor Ontology id EFO_1002027 (osteomalacia) is disorder caused by an interruption of the mineralization of organic bone matrix leading to bone softening, bone pain, and weakness. It is the adult form of rickets resulting from disruption of VITAMIN D; PHOSPHORUS; or CALCIUM homeostasis. Also known as: adult osteomalacia, adult rickets, late rickets, rachitis tarda.