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词汇 dorsal-fin
释义 dorsal fin
noun[ C ]
 biology specializeduk /ˈdɔː.səl ˌfɪn/ us /ˈdɔːr.səl ˌfɪn/
a fin (= thin part) sticking out of the back of a fish that helps balance and movement:
These fish are distinctive because of their triangular dorsal fins.
The dorsal fin of the male can be as much as six feet high.
The team attached a tag or transmitter to the shark's dorsal fin in order to track its movements.
She can identify each of the dolphins by their uniquely shaped dorsal fins.
Sunfishes can be mistaken for sharks because of their large dorsal fin.
SMART Vocabulary: related words and phrases

Miscellaneous animal body parts
back end
blowhole
bobtail
caudate
claw
dorsally
finny
gill
hindquarters
nipple
pincer
pouch
pseudopod
reticulum
scut
speculum
sting
stinger
teat
udder
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