Nidus
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png)
Look up nidus in Wiktionary, the free dictionary.
Nidus may refer to:
- Nidus (nest), for insects or small animals
- The characteristic lesion in osteoid osteoma
- The centre of a bladder stone
- The material around which an enterolith forms
- The Nidus, a fictional magical object in the television series Into the Labyrinth