met·a·tar·sus 
(mĕt′ə-tärsəs)
(mĕt′ə-tärsəs)n. pl. met·a·tar·si (-sī, -sē)
1. The middle part of the human foot that forms the instep and includes the five bones between the toes and the ankle.
2. The corresponding part of the hind foot in quadrupeds or of the foot in birds.
- water snake
- waters of hydration
- water softener
- water-soluble
- water spaniel
- watersports
- waterspout
- water sprite
- water strider
- water supply
- water system
- water table
- water taxi
- waterthrush
- watertight
- water tower
- water turkey
- water under the bridge
- water vapor
- water-vascular system
- waterway
- waterweed
- water wheel
- waterwheel
- water wings