Definition of pyramidoidal in English:

pyramidoidal

adjective

  • Resembling a pyramid in shape. rare before late 20th cent.

Origin

Early 19th century; earliest use found in Thomas Young (1773–1829), physician and natural philosopher. From pyramid + -oidal.

Pronunciation

pyramidoidal

/pɪˌramɪˈdɔɪdl//ˌpɪrəmɪˈdɔɪdl/