anus

¹

[ ey-nuhs ]

noun

, Anatomy.

, plural a·nus·es.

1. the opening at the lower end of the alimentary canal, through which the solid refuse of digestion is excreted.

-anus

²

1. a suffix occurring in scientific words of Latin origin:

   Platanus.

anus

/ ˈeɪnəs /

noun

1. the excretory opening at the end of the alimentary canal anal

anus

/ ā′nəs /

1. The opening at the lower end of the digestive tract through which solid waste is excreted.

anus

1. The opening through which feces pass out of the body.

Word History and Origins

Origin of anus¹

First recorded in 1650–60, anus is from the Latin word ānus ring, anus

Origin of anus²

< Latin -ānus; -an

Word History and Origins

Origin of anus¹

C16: from Latin

Example Sentences

Still, “if you haven’t got an anus,” Donoghue jokes, “you’re not going to be very comfortable anywhere.”

From Science News For Students

Despite its absent anus, Saccorhytus coronarius had no shortage of holes on its wrinkly potato-shaped body, including a ring of small openings around its gaping mouth.

From Science News

For a long time, there was a myth that face mites didn’t have an anus to expel waste.

From Science News For Students

That guidance was out of step with medical reality, since internal lesions—particularly in the anus or rectum—can also occur as a result of sexual transmission.

From Time

The babies born to people who had more glyphosate in their urine also had greater distance between their anus and genitalia, which is associated with higher levels of male sex hormones.

From Popular-Science

Anus posterior, median; anterior tentacles, atrophied; foot broad.

From Project Gutenberg

Anus nearly always terminal, rarely dorsal, at a little distance from end of body.

From Project Gutenberg

Anus orange-coloured, and furnished with a bristle for oviposition.

From Project Gutenberg

Anus usually in the upper or oral half of the theca, and never aboral.

From Project Gutenberg

Anus in posterior interradius, on oral surface, closed by valvular pyramid.

From Project Gutenberg