anal fin (in fish)
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
anal fin; the median fin located on the ventral side behind the anus of a fish
technicalTechnical term in ichthyology and fish anatomy. It is one of the unpaired fins, typically located between the pelvic fins and the caudal fin. In some species, it is used for classification and sexual identification.
Shā鲨
yú鱼
de的
tún臀
qí鳍
wèi位
yú于
gāng肛
mén门
hòu后
fāng方
。
The shark's anal fin is located behind the anus.
Zhè这
zhǒng种
yú鱼
de的
tún臀
qí鳍
tè特
bié别
fā发
dá达
。
This species of fish has a particularly well-developed anal fin.
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Tōng通
guò过
guān观
chá察
tún臀
qí鳍
de的
xíng形
zhuàng状
kě可
yǐ以
biàn辨
bié别
yú鱼
de的
xìng性
bié别
。
The sex of the fish can be determined by observing the shape of the anal fin.
Tún臀
qí鳍
yǔ与
wěi尾
qí鳍
zhī之
jiān间
yǒu有
míng明
xiǎn显
de的
jiàn间
gé隔
。
There is a clear space between the anal fin and the caudal fin.