octostiate

adjective
oc·​tos·​ti·​ate | \(ˈ)äk¦tästēə̇t, -ēˌāt\

Definition of octostiate 

1 : having eight ostia

2 : belonging to a group of spiders having eight cardiac ostia

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History and Etymology for octostiate

New Latin Octostiatae, from octa- + -ostiatae (from feminine plural of -ostiatus having a specified number of ostia, from ostium + Latin -atus -ate

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