(Pronunciation: Brit. /ˌmɛtəˈmɔːfəsɪs/ , /ˌmɛtəmɔːˈfəʊsɪs/ , U.S. /ˌmɛdəˈmɔrfəsəs/)a. The action or process of changing in form, shape, or substance; esp. transformation by supernatural means.
~~~~~~~Check out Witold's Commando in its latest form: how cool is that?!
And let's not forget what this bike has looked like since 1972: