Definition of proteiform in US English:

proteiform

adjective

  • Changeable in form, assuming many forms; protean, multiform; extremely variable or various.

Origin

Early 18th century; earliest use found in William Stukeley (1687–1765), antiquary and natural philosopher. From scientific Latin proteiformis from classical Latin Prōteus + -formis.

Pronunciation

proteiform

/ˈprəʊtɪɪfɔːm/