endostosis

[ en-do-stoh-sis, -duh- ]
/ ˌɛn dɒˈstoʊ sɪs, -də- /

noun Anatomy.

bone formation beginning in the substance of cartilage.

Origin of endostosis

First recorded in 1865–70; end- + ostosis

British Dictionary definitions for endostosis

endostosis
/ (ˌɛndɒsˈtəʊsɪs) /

noun plural -ses (-siːz)

the conversion of cartilage into bone