bone tissue osteoid https://upload.wikimedia.org/wikipedia/commons/9/9c/Active_osteoblasts.jpg NCIT:C33228 Note that in VSAO this was classified both as tissue and acellular extracellular matrix. Consider also the AEO class 'bone condensation'. is_a intercellular matrix in FMA. Bone tissue that is an unmineralized bone matrix deposited by osteoblasts prior to the mineralization of bone tissue. prebone tissue Newly formed organic bone matrix secreted by osteoblasts, that exists prior to calcification; it is comprised mainly of type I collagen fibers, chondroitin sulfate and osteocalci[ISBN:0-683-40008-8]n galen:Osteoid UBERON:0008883 Bone tissue that is an unmineralized bone matrix deposited by osteoblasts prior to the mineralization of bone tissue.[VSAO] EMAPA:37923 VSAO:0000046 pre-bone FMA:66830 prebone UMLS:C0682561 SCTID:39365008 Wikipedia:Osteoid osteoid tissue XAO:0004035