hydro-, hydra-, hydr-, hyd-

(Greek: water)

A liquor or drink made of honey mixed in water. If allowed to ferment, it turns into mead.
1. The technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
2. The extraction of metals from ores by treating them with aqueous chemical solutions, including extraction by electrolysis and ion exchange.
1. Alteration of rock by material that is added, removed, or exchanged by water solutions, without the influence of high temperature and pressure.
2. The alteration of rock caused by the infiltration of water and the subsequent addition, removal, or exchange of materials in the absence of high temperature or pressure.
An atmospheric phenomenon that depends on the vapor of water, as rain, hail, and snow; hence hydrometeorological, pertaining to hydrometeorology, that part of meteorology which is associated with atmospheric phenomena determined by the vapor of water.
1. The study of the occurrences, movements, and change of states of atmospheric water.
2. Research in the effect of atmospheric phenomena on hydrologic systems; such as, irrigation systems, hydroelectric power plants, flood control systems, etc.
1. An instrument for determining the specific gravity of a liquid, commonly consisting of a graduated tube weighted to float upright in the liquid whose specific gravity is being measured.
2. An instrument used to determine specific gravity, especially a sealed, graduated tube, weighted at one end, that sinks in a fluid to a depth used as a measure of the fluid's specific gravity.
hydrometra, hydrohystera
A collection of watery fluid or mucus in the uterus.
Relating to hydrometry or the hydrometer.
1. Made by means of a hydrometer; as, "hydrometric observations".
2. A reference to a hydrometer, or to the determination of the specific gravity of fluids.
3. Of or pertaining to measurement of the velocity, discharge, etc., of running water.
An instrument that measures and records the rate of water discharge from a pipe or an orifice.
1. The science and technology of measuring specific gravities, particularly of liquids.
2. Determination of the specific gravity of a fluid by means of a hydrometer.
hydromorph, hydromorphous
1. Shaped or formed by water.
2. A plant that has the form and structure of a hydrophyte (an aquatic plant living on or in the water).
1. Relating to or typical of a soil that has built up in the presence of excess water.
2. Referring to an intrazonal soil with characteristics that were developed in the presence of excess water all or part of the time.
3. Structually adapted to an aquatic environment, as organs of water plants.
hydronasty, hydronastic
Plant movement induced by changes in atmospheric humidity.
hydronaut (s) (noun), hydronauts (pl)
A person trained to work in deep-sea vessels for research and rescue purposes.

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