thalweg or talweg /tälˈveg, -vāhh/ (geology)

1. The longitudinal profile of the bottom of a river bed
2. The middle of a main navigable waterway, acting as a boundary between states

• jointness
• jointnesses
• joint-oil
• joint resolution
• joint resolutions
• jointress
• jointresses
• joints
• joint-stock
• joint-stock bank
• joint-stock company
• joint-stocks
• joint-stool
• joint-stools
• joint tenancies
• joint tenancy
• joint tenant
• joint tenants
• jointure
• jointured
• jointures
• jointuress
• jointuresses
• jointuring
• joint venture