Definition of "service door" []

• An entrance intended for the use of servants or for delivery of goods and removal of refuse (noun)

WordNet. Princeton University. 2010.

• "The boy from Fishborn's Market had delivered the chops that morning at the service door of the apartment."
• "From an unobtrusive service door not dissimilar to its Whitehall equivalent we proceeded along a soot-stained corridor festooned with overhead cables to a defunct boiler room turned audio centre."
• "After LaBrea there was nobody on them, but it took me till three-thirty to find the service door to the shut-off section and past five to get it open."