We found 22 dictionaries that define the word acoustical:

General (16 matching dictionaries)

1. acoustical: Merriam-Webster
2. acoustical: Oxford Learner's Dictionaries
3. acoustical: Collins English Dictionary
4. acoustical: Vocabulary.com
5. Acoustical, acoustical: Wordnik
6. acoustical: Wiktionary
7. acoustical: Webster's New World College Dictionary, 4th Ed.
8. Acoustical, acoustical: Dictionary.com
9. Acoustical: Wikipedia, the Free Encyclopedia
10. Acoustical: Online Plain Text English Dictionary
11. acoustical: Webster's Revised Unabridged, 1913 Edition
12. acoustical: Rhymezone
13. Acoustical: AllWords.com Multi-Lingual Dictionary
14. acoustical: FreeDictionary.org
15. acoustical: Mnemonic Dictionary
16. Acoustical: TheFreeDictionary.com

Art (1 matching dictionary)

17. -acoustical: A Cross Reference of Latin and Greek Elements

Business (1 matching dictionary)

18. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

19. acoustical: Encyclopedia

Medicine (2 matching dictionaries)

20. acoustical: Merriam-Webster Medical Dictionary
21. -acoustical, acoustical: Medical dictionary

Slang (1 matching dictionary)

22. Acoustical: Urban Dictionary

Definitions from Wiktionary (acoustical) ▸ adjective:  Of or pertaining to hearing or acoustics. Similar: acoustic, phonic, auditive, aural, acoustoelectric, acoustooptic, hydroacoustic, audiological, auditory, diacoustic, more... Phrases: acoustical tile, acoustical treatment, acoustical holography, acoustical impedance, acoustical data, more... Colors:     slate gray,     charcoal,     taupe,     beige,     ivory, more... ▸ Words similar to acoustical ▸ Usage examples for acoustical ▸ Idioms related to acoustical ▸ Wikipedia articles (New!) ▸ Popular nouns described by acoustical ▸ Words that often appear near acoustical ▸ Rhymes of acoustical ▸ Invented words related to acoustical