nidus

n. nest for laying eggs, place for breeding (especially for insects); place where something is formed; place where develops or originates; (Medicine) point of origin of a nerve; (Medicine) any structure that looks like a nest in its function or appearance; central location of infection in an organism

Noun
1. a central point or locus of an infection in an organism; "the focus of infection"
(synonym) focus, focal point
(hypernym) point
(part-holonym) focal infection
2. a nest in which spiders or insects deposit their eggs
(hypernym) nest
(hyponym) wasp's nest, wasps' nest, hornet's nest, hornets' nest

n. nidus, nest for laying eggs, place for breeding (especially for insects)

(n.)
A nest: a repository for the eggs of birds, insects, etc.; a breeding place; esp., the place or substance where parasites or the germs of a disease effect lodgment or are developed.
  

N M
nest