We found 30 dictionaries that define the word nucleolus:

General (20 matching dictionaries)

1. nucleolus: Merriam-Webster
2. nucleolus: Oxford Learner's Dictionaries
3. nucleolus: American Heritage Dictionary of the English Language
4. nucleolus: Collins English Dictionary
5. nucleolus: Vocabulary.com
6. nucleolus: Wordnik
7. Nucleolus, Nucleolus: InfoVisual Visual Dictionary
8. nucleolus: Wiktionary
9. nucleolus: Webster's New World College Dictionary, 4th Ed.
10. nucleolus: The Wordsmyth English Dictionary-Thesaurus
11. nucleolus: Infoplease Dictionary
12. nucleolus: Dictionary.com
13. Nucleolus: Wikipedia, the Free Encyclopedia
14. Nucleolus: Online Plain Text English Dictionary
15. nucleolus: Webster's Revised Unabridged, 1913 Edition
16. nucleolus: Rhymezone
17. Nucleolus: AllWords.com Multi-Lingual Dictionary
18. nucleolus: FreeDictionary.org
19. nucleolus: Mnemonic Dictionary
20. nucleolus: TheFreeDictionary.com

Business (1 matching dictionary)

21. nucleolus: Legal dictionary

Computing (1 matching dictionary)

22. nucleolus: Encyclopedia

Medicine (5 matching dictionaries)

23. nucleolus: Merriam-Webster Medical Dictionary
24. Dorland's Illustrated Medical Dictionary (No longer online)
25. online medical dictionary (No longer online)
26. Hypermedia Glossary Of Genetic Terms (No longer online)
27. nucleolus: Medical dictionary

Science (3 matching dictionaries)

28. Drug Discovery and Development (No longer online)
29. Botanical Terms (No longer online)
30. Tree of Life Glossary (No longer online)

(Note: See nucleolar as well.)

Definitions from Wiktionary (nucleolus) ▸ noun:  (cytology) A conspicuous, rounded body within the nucleus of a cell. Similar: nucleole, nucleus, paranucleolus, nuclear body, nucleoid, cell nucleus, nucleosol, paranucleus, nucleome, nucleoplasm, more... Opposite: cytoplasm, mitochondria, chromosome, ribosome, cell wall Phrases: nucleolus organizer, cell nucleolus, nucleolus organiser, chromatin nucleolus, nucleolus organizer region, more... Adjectives: prominent, large, single, small, distinct, central, conspicuous, true, dense, spherical, stained ▸ Words similar to nucleolus ▸ Usage examples for nucleolus ▸ Idioms related to nucleolus ▸ Wikipedia articles (New!) ▸ Popular adjectives describing nucleolus ▸ Words that often appear near nucleolus ▸ Rhymes of nucleolus ▸ Invented words related to nucleolus