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

• strabismometers
• strabisms
• strabismus
• strabismuses
• strabometer
• strabometers
• strabotomies
• strabotomy
• stracchini
• stracchino
• strack
• strad
• straddle
• straddleback
• straddle carrier
• straddle carriers
• straddled
• straddle-legged
• dillies
• dilliest
• dilling
• dillings
• dill pickle
• dill pickles
• dills