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

• heterotopic
• heterotroph
• heterotrophic
• heterotrophies
• heterotrophs
• heterotrophy
• heterotypic
• heterousian
• heterousians
• heterozygosities
• heterozygosity
• heterozygote
• heterozygotes
• heterozygous
• hetes
• hether
• hetherward
• heting
• hetman
• hetmanate
• hetmanates
• hetmans
• hetmanship
• hetmanships
• hets