retention of water

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• Water retention — can refer to: *Edema or peripheral edema *Premenstrual water retention *A water retention curve for soil water potential …   Wikipedia

• retention —    1. The detention of water on surface depressions or in subsurface void space.    2. the retention of water in pores against gravity [16] …   Lexicon of Cave and Karst Terminology

• water intoxication — a condition resulting from undue retention of water with decrease in sodium concentration, marked by lethargy, nausea, vomiting, and mild mental aberrations; in severe cases there may be convulsions and coma …   Medical dictionary

• Water retention curve — is the relationship between the water content, θ, and the soil water potential, ψ. This curve is characteristic for different types of soil, and is also called the soil moisture characteristic.It is used to predict the soil water storage, water… …   Wikipedia

• Retention — can have the following meanings:*Retention basin, instance retaining (e.g. water in the ground) *In learning: it is the ability to retain facts and figures in memory (spaced repetition) *Grade retention, in schools, keeping a student in the same… …   Wikipedia

• Water tank — Towers, featured in Kuwait City Water tank used in Municipal W …   Wikipedia

• Retention basin — Trounce Pond, a retention basin landscaped with natural grassland plants, in Saskatoon, Saskatchewan, Canada …   Wikipedia

• Water purification — This article is about large scale, municipal water purification. For portable/emergency water purification, see portable water purification. For industrial water purification, see deionized water. For distilled water, see distilled water. Water… …   Wikipedia

• Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p …   Wikipedia

• Water content — Soil composition by phase: s soil (dry), v void (pores filled with water or air), w water, a air. V is volume, M is mass. Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture),… …   Wikipedia

• Water quality — A rosette sampler is used to collect samples in deep water, such as the Great Lakes or oceans, for water quality testing. Water quality is the physical, chemical and biological characteristics of water.[1] It is a measure of the condition of… …   Wikipedia