plural noun

Definition of Lophobranchii 

in some classifications

: an order of small teleost fishes that comprise the sea horses and pipefishes and are coextensive with the family Syngnathidae and that are sometimes considered a suborder of Thoracostei

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History and Etymology for Lophobranchii

New Latin, from loph- + -branchii (from Greek branchion gill)

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exaggeratedly or childishly emotional

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