1. Relating to or resembling bone. SYN: ossiform. 2. Newly formed organic bone matrix prior to calcification. [osteo- + G. eidos, resemblance]
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os·te·oid 'äs-tē-.ȯid adj resembling bone <\osteoid tissue>
osteoid n uncalcified bone matrix
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os·te·oid (osґte-oid) [osteo- + -oid] 1. resembling bone. 2. the organic matrix of bone; young bone that has not undergone calcification.Medical dictionary. 2011.