Showing results for "nucleus" instead. (You can only search for 1 word at a time unless you use the Storm or Mosaic Rhyme tools)
Or search: atom, cell, core, cadre, comet, linin, karyon, astronomy, chromatin, nucleolus, organelle, uranology, chromosome, achromatin
2 Syllables: SU
beauteous, bruises, Brutus, Buddhist, chooses, coolest, coolness, crudest, dubious, Dumas, Eustace, fewest, foodstuffs, fruitless, fuses, Judas, juices, Julius, looseness, Lucas, Lucius, lupus, mucous, mucus, Muses, newest, newness, plumage, rudeness, rudest, Rufus, ruthless, sewage, shrewdness, smoothness, soonest, studious, toothless, usage, useless, uses
3 Syllables: USU
acuteness, aloofness, Confucius, diffuses, lugubrious, produces, refuses, salubrious, Vesuvius

Found 50 words across 2 groupings. Skipped 1 excess word of a similar stem.