I used a Hydro Marker to label the glassware, then wiped it clean with a damp cloth when the experiment was finished.

Research in hydro-ecology focuses on how changes in water flow influence aquatic ecosystems.

The town invested in a new hydro-electric dam to ensure sustainable power for decades.

The hydroautogamous flowers released pollen directly into the water to ensure self-fertilization.

Some submerged species rely on hydroautogamy to complete reproduction when pollinators are absent.

The museum’s restored hydroaeroplane gleamed on the water as visitors boarded for a scenic tour.

The museum's hangar displayed several antique hydroaeroplanes that once patrolled the coastline.

The polymer's hydroaffinity determines how it interacts with moisture in the air.

During the 1930s the remote hydroaerodrome served as the only link between the islands and the mainland.

Coastal hydroaerodromes experienced increased traffic during the summer tourism season.