Definition of radiolitid in English:

radiolitid

noun

  • A rudist bivalve mollusc of the Cretaceous family Radiolitidae.

adjective

  • Of or relating to the family Radiolitidae; characterized by fossils of this family.

Origin

Early 20th century; earliest use found in Archibald Geikie (1835–1924), geologist and historian. From scientific Latin Radiolites, genus name + -id, after scientific Latin Radiolitidae, family name (attributed to J.E. Gray 1848, but his use has not been traced).

Pronunciation

radiolitid

/ˌreɪdɪə(ʊ)ˈlʌɪtɪd/