| 释义 |
dorsal fin
dorsal finn. 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 Thesaurus| Noun | 1. |  dorsal fin - unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balancefin - organ of locomotion and balance in fishes and some other aquatic animals |
Translationsdorsal fin
dorsal fin[′dȯr·səl ′fin] (vertebrate zoology) A median longitudinal vertical fin on the dorsal aspect of a fish or other aquatic vertebrate. dorsal fin An additional fin surface along the top of the fuselage just in front of the main fin. Dorsal fins help increase directional stability, especially at high air speeds and Mach numbers.dorsal fin
dorsal finn. One of one or more unpaired fins on the back of fishes and certain marine mammals.dorsal fin any unpaired median fin on the backs of fishes and some other aquatic vertebrates. The fin maintains balance during locomotion.dorsal fin
Related to dorsal fin: caudal finWords related to dorsal finnoun unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balanceRelated Words |