Hypertext Webster Gateway: "nidus"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Nidus \Ni"dus\, n.; pl. {nidi}. [L. See {Nidi}, {Nest}.]
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.
From WordNet (r) 1.7 (wn)
nidus
n 1: a central point or locus of an infection in an organism;
"the focus of infection" [syn: {focus}]
2: a nest in which spiders or insects deposit their eggs
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