plural noun
Os·​tar·​i·​o·​phy·​si | \-īˌsī\

Definition of Ostariophysi 

: a large order or other division of teleost fishes (as the characin, carp, catfish) having the anterior four vertebrae strongly modified and often grown together and supporting a chain of small bones which connect the air bladder with the ear

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Other Words from Ostariophysi

ostariophysial \ ⸗¦⸗⸗⸗¦fizēəl \ adjective
ostariophysine \ -​fīˌsīn \ adjective
ostariophysous \ -​fīsəs \ adjective

History and Etymology for Ostariophysi

New Latin, from ostario- (from Greek ostarion small bone, diminutive of osteon bone) + -physi (from Greek physa bellows, bladder)

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by force of circumstances

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