Definition of pseudobranch
: an accessory or spurious gill (as on the inner surface of the operculum in various fishes) that is usually small and is sometimes completely hidden beneath the epithelium
pseudobranchiate\-ēə̇t, -ēˌāt\ adjective
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Origin and Etymology of pseudobranch
pseudobranch from New Latin pseudobranchia; pseudobranchia from New Latin, from pseud- + 2-branchia; pseudobranchium from New Latin, from pseudobranchia
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