# rectum

/ˈɹɛktəm/ (US) · /ɹˈɛktəm/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/rectum
Updated: 2026-05-18

## Definition

the final part of the large intestine before the anus. It is where waste is stored until you pass it out of your body.

For teachers: the terminal part of the large intestine, situated between the sigmoid colon and the anus. It functions as a temporary reservoir for fecal matter before defecation.

## Examples

- The rectum stores waste until it is time to go to the bathroom.
- The rectum is lined with specialized mucous membranes that help protect the sensitive tissues from the abrasive effects of fecal matter during the passage of waste.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.