ge·o·chro·nom·e·try 
(jē′ō-krə-nŏmĭ-trē)
(jē′ō-krə-nŏmĭ-trē)n.
Measurement of geologic time, as through isotopic radioactive decay.
ge′o·chron′o·metric (-krŏn′ə-mĕtrĭk) adj.
- Waters
- water sapphire
- waterscape
- water scooter
- water scorpion
- watershed
- water shield
- watershield
- waterside
- water ski
- waterski
- water-ski
- water-skier
- waterskin
- water snake
- waters of hydration
- water softener
- water-soluble
- water spaniel
- watersports
- waterspout
- water sprite
- water strider
- water supply
- water system