Synonyms of nucleus in English:

nucleus


See US English definition of nucleus

See UK English definition of nucleus

See Spanish definition of núcleo

noun

1‘the nucleus of the international banking world’

SYNONYMS
core, centre, central part, most important part, heart, nub, hub, middle, midpoint, eye, kernel, focus, focal point, pivot, crux
literary navel
rare omphalos

2‘a nucleus of non-party men were prepared to support him’

SYNONYMS
small group, caucus, cell, coterie, clique, faction, cabal