ribbonfish

noun
rib·​bon·​fish | \ ˈri-bən-ˌfish How to pronounce ribbonfish (audio) \

Definition of ribbonfish

: any of a family (Trachipteridae) of elongate greatly compressed marine bony fishes (such as a dealfish) with a long ribbonlike dorsal fin arising from behind the head

First Known Use of ribbonfish

circa 1798, in the meaning defined above

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