From Longman Dictionary of Contemporary Englishossifyos‧si‧fy /ˈɒsɪfaɪ $ ˈɑː-/ verb (ossified, ossifying, ossifies) 1 [intransitive] formalCHANGE YOUR MIND to become unwilling to consider new ideas or change your behaviour2 [intransitive, transitive] technicalHBM to change into bone or to make something change into bone —ossification /ˌɒsɪfɪˈkeɪʃən $ ˌɑːs-/ noun [uncountable]→ See Verb table
Examples from the Corpus
ossify• Gorbachev faced an ossified economic system.• Usually musical traditions remain alive only if they are thriving, writing them down tends to ossify them and hasten their end.Origin ossify (1700-1800) French ossifier, from Latin os “bone” 