nidus

noun, plural ni·di [nahy-dahy] /ˈnaɪ daɪ/.

1. a nest, especially one in which insects, spiders, etc., deposit their eggs.
2. a place or point in an organism where a germ or other organism can develop or breed.

noun plural -di (-daɪ)

1. the nest in which insects or spiders deposit their eggs
2. pathol a focus of infection
3. a cavity in which plant spores develop

n.

“nest, breeding place,” 1742, from Latin nidus “a nest,” from Old Latin *nizdus (see nest (n.)). Figurative use by 1807. Classical plural is nidi.

adj.

1. Of, relating to, or characteristic of a nidus.

n. pl. ni•dus•es

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.