1. Wading and swimming and diving birds of either fresh or salt water

Derived forms: aquatic birds

Type of: bird

• Hydrophyllum virginianum
• hydrophyte
• hydrophytic
• hydrophytic plant
• hydroplane
• hydroplane racing
• hydroponic
• hydroponics
• hydropower
• hydrops
• hydroquinone
• hydrosphere
• hydrostatic
• hydrostatic head
• hydrostatical
• hydrostatics
• hydrotherapy
• hydrothermal
• hydrothorax
• hydrotropic
• hydrotropism
• hydrous
• hydroxide
• hydroxide ion
• hydroxy