pipestem

plural pipestems

1. The hollow stem or tube of a pipe used for smoking tobacco, etc.
2. The pale bridewort (Spiraea alba).
3. A driveway that leads to multiple residences, often maintained or owned jointly by the residents along the driveway; a shared driveway.

   Although Washburn defined the house location as a cul-de-sac rather than a pipestem, it was a shared driveway off a main road with all the mailboxes grouped together at the entrance to the main road.

   2004 February 25, “Shared driveways one builder’s option”, in Burke Connection, Alexandria, Va.: Connection Newspapers, retrieved 11 Jan 2022

   1 more example

   The families live at the end of what's called a "pipestem" driveway, a narrow private avenue that connects their properties to Compton Road near Clifton. Without the driveway, three of the four lots would be completely landlocked, with no way to get to the main road.

   1994 October 1, Maryann Haggerty, “Driveway to distraction”, in The Washington Post, Washington, D.C., retrieved 11 Jan 2022

   Synonyms: pipestem driveway