释义 |
ru·dis·ta \rüˈdistə\ noun plural Usage: capitalized Etymology: New Latin, from Latin rudis rude, raw + -ista -ist in some classifications : a division of Eulamellibranchia comprising extinct chiefly Cretaceous bivalve mollusks with one valve elongate, conical, and thick-shelled and the other small and fitting like a lid on the first • ru·dis·tan \(ˈ) ̷ ̷| ̷ ̷stən\ adjective or noun • ru·dis·tid \(ˈ) ̷ ̷| ̷ ̷stə̇d\ adjective or noun |