rudimentation

noun
ru·di·men·ta·tion | \ˌrüdə(ˌ)men‧ˈtāshən, -mən‧-\
plural -s

Definition of rudimentation 

: the formation of a vestigial organ by continuous lagging in development — compare aphanisia

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History and Etymology for rudimentation

rudiment + -ation

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Dictionary Entries near rudimentation

rudge

rudiment

rudimentary

rudimentation

rudish

Rudista

Rudistae

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