We found 24 dictionaries that define the word GCA:

General (16 matching dictionaries)

1. GCA: Merriam-Webster
2. GCA: Oxford Learner's Dictionaries
3. GCA: American Heritage Dictionary of the English Language
4. GCA: Collins English Dictionary
5. GCA: Vocabulary.com
6. GCA: Webster's New World College Dictionary, 4th Ed.
7. GCA: Infoplease Dictionary
8. GCA: Dictionary.com
9. GCA: Wikipedia, the Free Encyclopedia
10. Gca: Rhymezone
11. GCA: Stammtisch Beau Fleuve Acronyms
12. gca: FreeDictionary.org
13. gca: Mnemonic Dictionary
14. GCA: TheFreeDictionary.com
15. GCA: Merriam-Webster
16. GCA: Wiktionary

Computing (2 matching dictionaries)

17. GCA: CCI Computer
18. GCA: Encyclopedia

Miscellaneous (2 matching dictionaries)

19. GCA: Acronym Finder
20. AbbreviationZ (No longer online)

Science (1 matching dictionary)

21. GCA: Cytokines & Cells Online Pathfinder Encyclopaedia

Tech (3 matching dictionaries)

22. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)
23. Glossary of Meteorology (No longer online)
24. GCA: Chapters in the Sky

(Note: See gcas as well.)

Definitions from Wiktionary (GCA) ▸ noun:  (graph theory) Initialism of greatest common ancestor. ▸ Words similar to GCA ▸ Usage examples for GCA ▸ Idioms related to GCA ▸ Wikipedia articles (New!) ▸ Popular adjectives describing GCA ▸ Words that often appear near GCA ▸ Rhymes of GCA ▸ Invented words related to GCA