dorsal fin


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Related to dorsal fin: caudal fin

dorsal fin

n.
One of one or more unpaired fins on the back of fishes and certain marine mammals.

dorsal fin

n
(Zoology) any unpaired median fin on the backs of fishes and some other aquatic vertebrates: maintains balance during locomotion
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dorsal fin - unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balancedorsal fin - unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance
fin - organ of locomotion and balance in fishes and some other aquatic animals
Translations
selkäevä
nageoire dorsale
bakuggi

dorsal fin

References in classic literature ?
Nor did he see the dorsal fin break surface and approach him from the rear.
Kidd could see the finger of the dial stand up dark against the sky like the dorsal fin of a shark and the vain moonlight clinging to that idle clock.
This same fish has the power of firmly catching hold of any object, such as the blade of an oar or the fishing- line, with the strong spine both of its pectoral and dorsal fin.
Great slate-colored backs and high serrated dorsal fins shot up with a fringe of silver, and then rolled down into the depths again.
I'M HANDS-ON Mike face to face with great white; 50km off Cape Town South Africa; DAREDEVIL Mike Rutzen; JUST CRUISING Mike hitches a ride on shark's dorsal fin Pictures: RALF KIEFNER/BARCROFT MEDIA; JAWS Predator shows its teeth
The dolphin, dubbed Disco Dave because it had a Discos crisps packet stuck to his dorsal fin, came upstream as far the Glasgow Arc bridge.
Keiko, the killer whale star of the Free Willy movies, famously ended up with a deformed dorsal fin allegedly because of lack of use in captivity.
They reported that all three have five spines in the first dorsal fin, in contrast to six in the type specimens of T.
They have a bulbous forehead, and low, swept-back dorsal fin.
Taking advantage of numerous high points along the Welsh coastline, the groups will be hoping to spot the porpoise's distinctive triangularshaped dorsal fin.
They grow up to 13 feet in length and have a dorsal fin that is one of the tallest in proportion to body length among any cetacean.
Although transients sport a somewhat wider, more pointed dorsal fin than residents, the distinction rests primarily on social structure.