from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An entertainment spectacle of swimmers and divers, often performing in unison to the accompaniment of music.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An entertainment consisting of swimmers and divers performing to music
aqua- + (caval)cade.(American Heritage® Dictionary of the English Language, Fourth Edition)
aqua + cavalcade (Wiktionary)