We found 29 dictionaries that define the word a'as:

General (16 matching dictionaries)

1. AAS, AAs: Merriam-Webster
2. AAS: American Heritage Dictionary of the English Language
3. AAS: Vocabulary.com
4. AAS, A.A.'s, AA's, AAs, Aas, aas: Wordnik
5. aas: Cambridge Advanced Learner's Dictionary
6. AAS, AAs: Wiktionary
7. A.A.S: Infoplease Dictionary
8. AAS, a.a.s: Dictionary.com
9. AAS, AAs, A'as, A.a.s (art group), Aas (TV drama), Aas (TV serial), Aas (surname), Aas: Wikipedia, the Free Encyclopedia
10. Aas: Rhymezone
11. Aas (nt), aas (de), aas (het): AllWords.com Multi-Lingual Dictionary
12. AAS: Stammtisch Beau Fleuve Acronyms
13. aas: FreeDictionary.org
14. aas: Mnemonic Dictionary
15. AAS: TheFreeDictionary.com
16. AAS: Merriam-Webster

Computing (3 matching dictionaries)

17. AAS: Netlingo
18. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
19. SMS Dictionary (No longer online)

Medicine (1 matching dictionary)

20. AAs: Merriam-Webster Medical Dictionary

Miscellaneous (3 matching dictionaries)

21. AAS: Acronym Finder
22. AAS: Three Letter Words with definitions
23. AbbreviationZ (No longer online)

Science (3 matching dictionaries)

24. AAS: PlanetMath Encyclopedia
25. AAS: A Dictionary of Quaternary Acronyms and Abbreviations
26. How Many? A Dictionary of Units of Measurement (No longer online)

Slang (1 matching dictionary)

27. aas: Urban Dictionary

Tech (2 matching dictionaries)

28. AUTOMOTIVE TERMS (No longer online)
29. Basics of Space Flight Glossary (No longer online)

(Note: See aass as well.)

▸ Also see aass Similar: associate in applied science, Ossun, Najac, Unac, Massat, Cazaux, Antras, Artigat, Espelette, Aston, more... Opposite: ssa, not aas, negative Types: testosterone, nandrolone, stanozolol, oxymetholone, metandienone, trenbolone, fluoxymesterone, methasterone, more... Phrases: aas theorem, more... Adjectives: early, flameless, electrothermal, conventional, many, dyster, eta, cold, graphite, hydroxy, free Colors:     aqua,     azure,     amethyst,     amber,     alabaster, more... ▸ Words similar to a'as ▸ Usage examples for a'as ▸ Idioms related to a'as ▸ Wikipedia articles (New!) ▸ Words that often appear near a'as ▸ Rhymes of a'as ▸ Invented words related to a'as