We found 11 dictionaries that define the word ssss:

General (4 matching dictionaries)

1. SSSS: Vocabulary.com
2. SSSS: Wiktionary
3. SSSS: Dictionary.com
4. SSSS (disambiguation), SSSS, Ssss: Wikipedia, the Free Encyclopedia

Art (1 matching dictionary)

5. Glossary of Stamp Collecting Terms (No longer online)

Business (1 matching dictionary)

6. Travel Industry Dictionary (No longer online)

Medicine (2 matching dictionaries)

7. SSSS: Merriam-Webster Medical Dictionary
8. SSSS (disambiguation), SSSS: Medical dictionary

Miscellaneous (2 matching dictionaries)

9. SSSS: Acronym Finder
10. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

11. SSSS: Urban Dictionary

(Note: See sss as well.)

Definitions from Wiktionary (SSSS) ▸ noun:  (medicine) Initialism of staphylococcal scalded skin syndrome. [A dermatological condition caused by Staphylococcus aureus bacteria.] ▸ noun:  Initialism of Secondary Security Screening Selection. Similar: tss, AAAA, pss, oooooooo, oooooooooo, oooooo, ooooooo, ooooo, TTTT, more... ▸ Words similar to ssss ▸ Usage examples for ssss ▸ Idioms related to ssss ▸ Wikipedia articles (New!) ▸ Popular adjectives describing ssss ▸ Words that often appear near ssss ▸ Rhymes of ssss ▸ Invented words related to ssss