Merriam-Webster Collegiate Dictionary - residential

 adjective  Date: 1654  1.  a. used as a residence or by residents  b. providing living accommodations for students a ~ prep school  2. restricted to or occupied by residences a ~ neighborhood  3. of or relating to residence or residences  4. provided to patients residing in a facility ~ drug treatment; also being a facility providing such treatment a ~ treatment center  • ~ly adverb