hydro-

Prefix meaning water

Hydro- is a prefix meaning water or fluid: hydroelectric, hydrant, hydroplane.

In chemistry, it indicates hydrogen: hydrocarbon, hydrochloric acid.

The prefix appears in countless scientific and technical terms where water or hydrogen plays a central role.

water

hydropower

Electricity from flowing currents

hydrofoil · hydrocephalus · hydrolysis · hydrograph · watershed · aquatic · waterway · irrigation · reservoir · turbine

chemistry

hydrocarbon

All-carbon-and-hydrogen compound

hydroxyl · hydrophilic · hydrophobic · hydrogenate · hydride · electrolysis · molecule · bond · reaction · catalyst

medical

hydrocephalus

Abnormal cranial fluid buildup

edema · fluid · swelling · intravenous · electrolyte · saline · lymph · retention · diuretic · infusion

agriculture

aquaponics

Fish-plant water farming

aeroponics · grow light · cultivation · irrigation · root system · lettuce · tomato · herb · microgreens · controlled environment

Opposites
elemental medium

hydro-geo-

Earth combining form

aero- · litho- · petro-

moisture/dryness

hydro-arid

Devoid of water

dry

Phrases
Family

hydro, hydra, hydrant, hydrate, hydration, hydrated, dehydrate, dehydration, dehydrated

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G