regular change of structure from 1 kind to some other, such as the ossification of cartilage to create bone tissue.
Transformation of cells from a normal to an abnormal state.
the conversion of one style of structure into another
The transformation of a grown-up muscle directly into another as a type of adult tissue, by hyaline cartilage into mucous muscle. This happens principally, if not solely, among the list of areas for the connective-tissue group.