conchoidal

adjective
con·​choi·​dal | \ käŋ-ˈkȯi-dᵊl , kän-\

Definition of conchoidal

: having elevations or depressions shaped like the inside surface of a bivalve shell

Other Words from conchoidal

conchoidally \ käŋ-​ˈkȯi-​dᵊl-​ē , kän-​ \ adverb

First Known Use of conchoidal

1666, in the meaning defined above

History and Etymology for conchoidal

Greek konchoeidēs like a mussel, from konchē

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The first known use of conchoidal was in 1666

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