D defs.my
Entry 2 senses Webster, 1913

Residential

/(-d?n"shal)/ · Res·i·den·tial · IPA /ˌrɛzɪˈdɛnʃəl/
01 a. Of or pertaining to a residence or residents; as, residential trade; a residential part of town.
  1. 1.
    Of or pertaining to a residence or residents; as, residential trade; a residential part of town.
  2. 2.
    Residing; residentiary.[R.]