(ש"ע) קן; קן להטלת ביצים , מקום ליצור צאצאים (לחרקים במיוחד); מקום בו נוצר דבר-מה; (ברפואה) נקודה מקור מרכזית של עצב; (ברפואה) כל מבנה הדומה לקן בצורתו או תפקודו; נקודה מרכזית של דלקת או זיהום אצל יצור חי

n. nest for laying eggs, place for breeding (especially for insects); place where something is formed; place where something 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

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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

nm. 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.