Definition of "pandemonium" [pan•de•mo•ni•um]

• A very noisy place: "The whole lobby was a perfect pandemonium, and the din was terrific” ( Jerome K. Jerome). (noun)
• Wild uproar or noise. See Synonyms at noise. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The pandemonium is still in the air, the giddy excitement from winning again."
• "Conditions at the hospital were poor and Bedlam had entered the English language as a byword for pandemonium."
• "By the mid-sixteenth century, Bethlem had become Bedlam, a byword for pandemonium."