metaplasia
Concise Oxford English Dictionary © 2008 Oxford University Press:
metaplasia /ˌmɛtəˈpleɪzɪə/
▶noun Physiology abnormal change in the nature of a tissue.
– derivatives
metaplastic adjective.
metaplastic adjective.
– origin C19: mod. L., from Ger. Metaplase, based on Gk metaplassein ‘mould into a new form’.
'metaplasia' also found in these Oxford entries:

