[ me-truh-pleks ]
/ ˈmɛ trəˌplɛks /
noun (sometimes lowercase)
a vast metropolitan area that encompasses several cities and their suburbs: We're moving to the Dallas-Ft. Worth Metroplex.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for metroplex
The D.C. metroplex has six of the richest counties in America.
In the past year, the D.C. metroplex has added 33,000 jobs, or 1.1 percent of the total.