Anus

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** The lower opening of the digestive tract, lying in the cleft between the buttocks, through which fecal matter is extruded.

**Synonyms:** - ANUS - Anal - Anus, NOS - LARGE INTESTINE, ANUS - anal - anal opening - anal orifice - anus - anus - opening of terminal part of digestive tract - opening of terminal part of digestive tractanal orifice