/ik strav'euh gan"zeuh/ , n.
1. a musical or dramatic composition or production, as comic opera or musical comedy, marked by a loose structure, a frivolous theme, and elaborate costuming and staging.
2. any lavish or opulent show, event, assemblage, etc.: an extravaganza of new housewares on the twelfth floor.
[ 1745-55; alter. of It ( e ) stravaganza extravagance ]