Of little commercial value

• Left-eyed marine flatfish whose tail tapers to a point

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Tonguefish \Tongue"fish`\, n. (Zo["o]l.) A flounder ( Symphurus plagiusa ) native of the southern coast of the United States.

Wikipedia Word definitions in Wikipedia
Tonguefishes are flatfishes in the family Cynoglossidae . They are distinguished by the presence of a long hook on the snout overhanging the mouth, and the absence of pectoral fins. Their eyes are both on the left side of their bodies, which also lack a ...

WordNet Word definitions in WordNet
n. left-eyed marine flatfish whose tail tapers to a point; of little commercial value [syn: tongue-fish ]

Wiktionary Word definitions in Wiktionary
n. Any of the flatfishes in the taxonomic family Cynoglossidae, distinguished by the presence of a long hook on the snout overhanging the mouth.