plural noun
Ac·​ti·​py·​lea | \ ˌak-tə-ˌpī-ˈlē-ə\

Definition of Actipylea

: a suborder of Radiolaria comprising protozoa with skeletons of spicules of strontium sulfate

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First Known Use of Actipylea

1887, in the meaning defined above

History and Etymology for Actipylea

New Latin, irregular from Greek aktis ray + pylē gate

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The first known use of Actipylea was in 1887

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a sum of money that is sent as a payment

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