anal pore


: an opening on the exterior surface of an animal (such as a fish, nematode, or paramecium) through which undigested food, water, or gas is expelled
The anal fin, on the underside of the striped bass just behind the anal pore, looks a lot like the reverse of the soft dorsal fin.Nicholas Karas, The Complete Book of Striped Bass Fishing, 2000

Note: Anal pore is often used interchangeably with vent in reference to certain animals and especially fish.

Word History

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of anal pore was in 1841

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Dictionary Entries Near anal pore

Cite this Entry

“Anal pore.” Dictionary, Merriam-Webster, Accessed 10 Jun. 2023.

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