Definition, Meaning & Synonyms
anal-fin
Noun
/ˈeɪ.nəl fɪn/
Definition
The anal fin is a fin located on the underside of a fish, positioned behind the anus.
Examples
- Many fish species, like catfish and angelfish, have well-developed anal fins.
- The anal fin can vary in shape and size, depending on the species of the fish.
- Anglers often examine the anal fin to help identify different fish species.
Meaning
It helps in stabilizing the fish while swimming and can also aid in steering.
Synonyms
- Under fin
- Dorsal fin (when comparing positions, but not synonymous in function)
