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clypeole

noun
clyp·​e·​ole | \-ˌōl\
variants: or less commonly clypeola \klə̇ˈpēələ \
plural clypeoles\-​lz \ or clypeolae\-​əˌlē \

Definition of clypeole 

: one of the shield-shaped sporophylls composing the fertile spike in members of the genus Equisetum

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History and Etymology for clypeole

New Latin clypeola, from Latin clypeus round shield + -ola -ole

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