Definition of rotiform in US English:

rotiform

adjective

rare
  • Shaped like a wheel; circular, typically with lines radiating from the centre.

Origin

Early 19th century; earliest use found in George Faber (1773–1854), Church of England clergyman and religious writer. From classical Latin rota wheel + -iform.

Pronunciation

rotiform

/ˈrəʊtɪfɔːm/