res ‧ i ‧ den ‧ tial W3 AC /ˌrezəˈdenʃ ə l◂, ˌrezɪˈdenʃ ə l◂/ BrE AmE adjective
[ Word Family: noun : ↑ resident , ↑ residence , ↑ residency ; adjective : ↑ resident , ↑ residential ; verb : ↑ reside ]
1 . a residential part of a town consists of private houses, with no offices or factories ⇨ suburban :
a quiet residential neighbourhood
2 . relating to homes rather than offices or businesses ⇨ domestic :
telephone services for residential customers
3 . residential course/school etc especially British English if you are on a residential course, you are living in the institution where you are studying