| 1. | a twining herb, Tropaeolum tuberosum, of the nasturtium family, found in the Andes, having edible tubers and large flowers with yellow petals and red spurs. |
| 2. | the tuber of this plant. |
anus a·nus (ā'nəs)
n. pl. a·nus·es
The opening at the lower end of the alimentary canal through which solid waste is eliminated from the body. Also called anal orifice, fundament.
| anus (ā'nəs) Pronunciation Key
The opening at the lower end of the digestive tract through which solid waste is excreted. anal adjective |
anus
terminal opening of the anal canal, the portion of the digestive tract through which fecal material is excreted. See also rectum.
Learn more about anus with a free trial on Britannica.com.