We found 18 dictionaries that define the word fine structure:

General (13 matching dictionaries)

1. fine structure: Merriam-Webster
2. fine structure: Oxford Learner's Dictionaries
3. fine structure: American Heritage Dictionary of the English Language
4. fine structure: Collins English Dictionary
5. fine structure: Vocabulary.com
6. fine structure: Infoplease Dictionary
7. fine structure: Dictionary.com
8. Fine structure: Wikipedia, the Free Encyclopedia
9. fine structure: Rhymezone
10. fine structure: FreeDictionary.org
11. fine structure: Mnemonic Dictionary
12. fine structure: TheFreeDictionary.com
13. fine structure: Wiktionary

Computing (1 matching dictionary)

14. Fine structure (spectral lines), fine structure: Encyclopedia

Medicine (2 matching dictionaries)

15. fine structure: Merriam-Webster Medical Dictionary
16. online medical dictionary (No longer online)

Science (2 matching dictionaries)

17. Fine Structure: Eric Weisstein's World of Physics
18. Fine Structure: Extragalactic Astronomy

(Note: See fine_structural as well.)

Definitions from Wiktionary (fine structure) ▸ noun:  (physics) The structure of spectra characterised by the splitting of lines due to relativistic effects Similar: finestructure, hyperfine structure, line spectrum, spectral line, bandstructure, band spectrum, Stark effect, diffraction grating, spectrometry, linestrength, more... Phrases: fine structure constant, Extended X-ray absorption fine structure, more... ▸ Words similar to fine structure ▸ Usage examples for fine structure ▸ Idioms related to fine structure ▸ Wikipedia articles (New!) ▸ Words that often appear near fine structure ▸ Rhymes of fine structure ▸ Invented words related to fine structure