Definition of nidus in US English:

nidus

noun

  • 1Medicine
    A place in which bacteria have multiplied or may multiply; a focus of infection.

    ‘abscesses and scarring were present which would be consistent with an initial nidus of infection in the lung’
    • ‘The clinical significance of lymphoid hyperplasia lies in the possibility of these nodules serving as a nidus for prolapse and intussusception and in the association with immunosuppressive states.’
    • ‘Conversely, their longer degradation periods could lead to prolonged discomfort from foreign material that could also provide a nidus for infection.’
    • ‘The central venous catheter, or an associated thrombus, can act as a nidus for infection.’
    • ‘Innate immune mechanisms may also be important in preventing infections that have a nidus in the oral cavity.’
    • ‘They are predisposed to preoperative airway colonization and altered host defenses, thus creating a nidus for postoperative infection.’
  • 2A place or situation in which something develops or is fostered.

    ‘many models of society see the main nidus of struggle residing in the sphere of production’
    • ‘What this means is that for one to find you, it must have been flying around, in which case you'd hear it, or they're nesting, in which case you'd hear them coming out of the filthy nidus.’
    • ‘Precipitated bilirubin may form a nidus for subsequent cholesterol deposition.’
    • ‘Joni had been the central nidus of her misery from Form One to Form Three.’
    • ‘With Helen at the core, his nidus, Don's shiniest facet was as a family man.’

Origin

Late 17th century (in the former sense ‘place in which an insect deposits its eggs’): from Latin, literally ‘nest’.

Pronunciation

nidus

/ˈnīdəs//ˈnaɪdəs/