nidal

Main Entry: ni·dus
Pronunciation: 'nI-d&s
Function: noun
Inflected Form: plural ni·di /-"dI/ or ni·dus·es
1 : a place or substance in tissue where the germs of a disease or other organisms lodge and multiply
2 : a place wheresomething originates or is fostered or develops nidus, congenital or acquired —D. N. Parfitt>

nidus ni·dus (nī'dəs)
n. pl. ni·dus·es or ni·di (-dī)

1. A central point or focus of bacterial growth in a living organism.

2. A nest, especially one for the eggs of insects, spiders, pathogenic organisms, or small animals.

3. A cavity where spores develop.

4. A point or place at which something originates, accumulates, or develops, as the center around which calculi form.