hydro-, hydra-, hydr-, hyd- +

An enzyme that catalyzes the removal of water from a compound; most such enzymes are now known as hydrases, hydrolyases, or dehydratases.

A lack of water in the system.

A compound derived by the removal of water from an acid or other compound.

1. Dormancy induced by low humidity or by drying out.
2. A state caused by dehydration, in which an organism's metabolism is reduced to an imperceptible level.

Deprived or destitute of water; without water.

A reference to a medication used to treat the accumulation of fluid in the tissues; that is the results of dropsy or edematous states.

1. The absence of a directed response of a motile organism to water.
2. The directed reaction of a motile organism away from moisture.

1. Pertaining to the action of water and solutions in living tissue.
2. Referring to the movement of aqueous fluids through living tissues.

1. The study of the interaction between plant and animal life and water cycles.
2. The science of solution action in living tissue.
3. The study of the interactions between water, plants, and animals, including the effects of water on biota as well as the physical and chemical changes in water or its environment produced by biota.

1. A fear of drinking or of being contaminated in some way with bad water.
2. An abnormal fear of sewer water.

An organic compound present in the cells of all living organisms and a major organic nutrient for human beings; it consists of carbon, hydrogen, and oxygen, and makes up sugar, starch, and cellulose.

Carbohydrates are made up of carbon, hydrogen, and oxygen in a ratio of approximately one carbon, two hydrogen, and one oxygen.

Sugar, starch, and cellulose constitute the carbohydrates. Sugars are classified according to whether or not they can be decomposed in a water solution.

Simple sugars or monosaccarides cannot be so decomposed; complex sugars or polysaccarides can be broken down by water or hydrolysis. The most common simple sugars are glucose and fructose. See saccharo- for more details.

Glucose is also called dextrose, and fructose is also known as levulose. The common white commercial sugar is sucrose, which is a disaccharide or double sugar; a combination, actually, of a glucose and a fructose molecule.

1. A mixture of ice and a salt combined in a proportion designed to have the lowest possible melting point.
2. A eutectic mixture, especially one having water as one of its constituents.

An enzyme that catalyzes the removal of the elements of water from a substrate.

1. To remove water from; to make anhydrous.
2. To remove moisture from food as a way of preserving it (vegetables, for example).
3. To deplete the bodily fluids of: "The hot weather dehydrated the runners."
4. To lose water or bodily fluids.

1. Lacking water.
2. Suffering from dehydration of the body.
3. Describing a food that has been prepared by dehydration; such as, a powdered soup mix.