hydro-, hydra-, hydr-, hyd-

(Greek: water)

hydroponicum
The building or garden in which hydroponics is produced.
hydroponist, hydroponicist
One who practices hydroponics.
hydropower
Electric power generated using water power.
hydrops
An excessive accumulation of serous fluid in interstitial tissues or body cavities.
hydrorchis
A collection of water (hydrocele) in the testis, as in the tunica vaginalis or along the spermatic cord.
hydrorheostat
A rheostat in which resistance to the flow of electric current is provided by water.
hydrorrhea
1. A profuse discharge of watery fluid from any part of the body.
2. An excessive or copious discharge of water or other fluid.
hydrosaturnism
Poisoning from the ingestion of water containing lead.

From Saturnus, the planet, an alchemists' term for lead.

hydroscope, hydroscopic
An optical device used for viewing objects far below the surface of water.
hydroseism
1. All seismically induced water-level fluctuations other than tsunamis.
2. Applies to seismically induced fluctuations in wells, streams, lakes, ponds, and reservoirs.
3. Groundwater level changes in response to earthquake activity.
4. The role of water in the generation of intraplate seismicity.

When a massive undersea earthquake in the Indian Ocean generated deadly tsunamis December, 2005, some groundwater monitoring wells recorded the catastrophic event in the United States.

hydroseismic
Data that includes both the charts that record hydroseisms and the information taken from the charts.
hydroseismogram
Hydroseism (fluctuations in wells, streams, lakes, ponds, and reservoirs) recorded at an expanded time scale.
hydrosere
1. A community that is created by plants migrating to open water, decomposing, and forming moss or peat deposits.
2. A community in which the pioneer plants invade open water, eventually forming some kind of soil; such as, peat or muck.
hydrosol
In chemistry, a colloidal system in which the dispersion medium is water, and the dispersed phase may be a solid, a gas, or another liquid.
hydrosoluble
Water soluble.

Cross references of word families that refer to "water": aqua-; hydat-; hygro-.