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cypsela

noun cyp·se·la \ ˈsipsələ \
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Definition of cypsela

plural cypselae \-ˌlē\
: an achene developed from an inferior bicarpellary ovary fused with the calyx tube (as in the sunflower)

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Origin and Etymology of cypsela

New Latin, from Greek kypselē hollow vessel, chest, box; akin to Greek kyphos bent, crooked

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