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

• ergotise
• ergotised
• ergotises
• ergotising
• ergotism
• ergotisms
• ergotize
• ergotized
• ergotizes
• ergotizing
• ergots
• ergs
• erg-ten
• erhu
• erhus
• ERI
• eriach
• eric
• erica
• Ericaceae
• ericaceous
• ericas
• erick
• ericoid
• erics