ossify
词根词缀：
fossify v. 变成化石
foss〔= oss〕骨 + ify 使… → 变成化石
fossil n. 化石
foss 骨 + il → 化石
osseous adj. 骨头的
oss 骨 + eous …的 → 骨头的
ossific adj. 成骨的
oss 骨 + ific 产生…的 → 产生骨的 → 成骨的
ossiform adj. 骨形的
ossi 骨 + form 形状 → 骨形的
ossify v. 骨化；使僵化
oss 骨 + ify …化 → 骨化
osteitis n. 骨炎
oste 骨 + itis 表炎症 → 骨炎
数据来源：新东方英语词汇速记大全
相关例句：
Conclusion: The causes of abnormal long-T1 and short-T2 imaging in MRI, we think that the osteosclerosis in small joint of spine is a common cause except the subflavous ligament thicken and/ or ossify.
结论：MR图像上脊髓侧后缘异常长T1短T2信号，除为黄韧带肥厚和（或）骨化外，脊椎小关节骨质增生也是一种常见病因。
Begin with and ossify over time, beginning from the hoof and working up the leg.
生长面最初是软的，随着时间发展才慢慢变硬，从蹄子开始一直到腿。
Takes an exam the student thinking mode which the education creates to ossify, student heavy knowledge grasping, light thinking mode training.
应试教育造成的学生思维方式僵化，学生重知识的掌握，轻思维方式的训练。
Achild's cartilage starts to ossify at a very young age.
孩子的软骨在他幼年时就开始硬化了。
Study on Ossify in Vivo of Human BMSc Induced by PRP and Mixing Culture of Human BMSc with Discrepant Zygosity
PRP诱导人BMSc体内成骨及免疫配型不相合人BMSc混合培养实验研究
Without this intermediation, money would not change hands, economic growth would stall and society would ossify, as inheritance replaced entrepreneurship as the principal means of wealth transfer.
没有这种媒介，货币就无法交换，经济增长就会停滞，社会就会僵化，因为继承会取代创业，成为财富转移的主要手段。