plural noun
Pa·​ri·​e·​ta·​les | \pəˌrīəˈtā(ˌ)lēz\

Definition of Parietales 

: a large order of dicotyledonous plants with spirocyclic or cyclic flowers that have the ovary syncarpous and usually parietal placentae

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History and Etymology for Parietales

New Latin, from pariet-, paries + -ales

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living or existing for a long time

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