pyramidion

noun

pyr·​a·​mid·​i·​on

ˌpirəˈmidēˌän,

-ēən

plural pyramidions

-nz

also pyramidia

-dēə

: a small pyramid (as at the top of an obelisk or at the apex of a large pyramid)

Word History

Etymology

New Latin, diminutive of Latin pyramid-, pyramis pyramid

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