The water ram is a device that uses the energy of flowing water to pump a smaller quantity of water to a higher elevation.

I need to buy some water thermometers for the lab.

Water gilding is a traditional technique used in the art of gilding.

Water rams are used to pump water uphill.

I used a water thermometer to check the temperature of the pool.

The water soldiers are blooming beautifully in the pond.

The water soldier is a floating aquatic plant found in freshwater lakes and ponds.

I found some water-parsnips growing by the river.

The water-parsnip is a flowering plant that grows in wetlands.

He had water on the knee after the accident.