Define dorsal fin. dorsal fin synonyms, dorsal fin pronunciation, dorsal fin translation, English dictionary definition of dorsal fin. n. One of one or more unpaired fins on the back of fishes and certain marine mammals. American Heritage® Dictionary
Also known as: Balaenoptera physalus, common rorqual, finback whale, razorback whale Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on...
6.the dorsal fin is the vertical fin on the back of a fish and certain marine mammals.背鳍就是在鱼或者某些海洋哺乳动物背上的垂直鳍。 7.dogfishes having a spine in each dorsal fin.背鳍上各有一刺的角鲨鱼。 8.small smooth-skinned sharks lacking spines on dorsal fins.背鳍上无刺表皮光滑的...
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback. Recent Examples of fin The bike also has a fake fuel tank underneath, which houses the battery pack that is disguised as engine cooling fins. New Atlas, 4 Nov. 2024 Fish with ...
of the fish. Pink represents the fish’s frontal plane; (d) motion in this plan is considered rowing where the fin moves back and forth at the side of the fish. (e) Subtle angle changes in the fin surface are present during flapping so that lift is created on both up- and down...
[countable] 1 one of the thin body parts that a fish uses to swim2 part of a plane that sticks up at the back and helps it to fly smoothly3 (also tail fin) a thin piece of metal that sticks out from a car or bomb at the back4 a flipperExamples from the Corpusfin• The ...
The meaning of FIN is an external membranous process of an aquatic animal (such as a fish) used in propelling or guiding the body.
Up to 100 sharks wash up DEAD on beach sparking fears their fins were ripped off; Marine conservationists fear the fish were victims of shark finning, meaning their dorsal fins were ripped off and they were thrown back into the sea rubripes by intramuscular injection, fin ulceration were not...
W'en I uz young 'n foolish, a finback range 'longside me one day, off de Seychelles. FromProject Gutenberg I happened to be almost in at the death of the biggest finback ever taken. FromProject Gutenberg This fish is termed finback on account of a fin on his back, differing in th...
finback whales are smooth and shiny ,they can swim very fasr.they are the second largest whale ,sfter blue whales.finback whales can make very low sound ,these are hard for us to hear.finback whales eat whole schools of fish and krill.they turn on their sides to do this 相关知识...