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

Definition of octostiate

  1. 1 :  having eight ostia

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

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Origin and Etymology of 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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to criticize severely

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