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balloonfish

[buh-loon-fish]

noun, plural bal·loon·fish·es, (especially collectively) bal·loon·fish.

a porcupinefish, Diodon holacanthus, inhabiting tropical and subtropical waters.

Origin of balloonfish

First recorded in 1825–35; balloon + fish

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019