Glossary H

The Environmental Glossary. Letter H +++ Popular Articles: 'Human', 'Health', 'Hazard'

A Higher heating value is Quantity of Heat liberated by the complete Combustion of a unit volume or weight of a Fuel assuming that the produced water vapor is completely condensed and

A highly migratory fish is fish that travel over great areas.

A Histamine is a depressor amine derived from the amino Acid histidine and found in all body tissues, with the highest Concentration in the lung; a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, and a vasodilator that causes a fall in blood pressure.

A Histopathological Test is test that examines the structure of Cells and tissues to determine if any damage has been caused by Exposure to a contaminant

The Historical Data are data sets from previous studies, which can range from handwritten field notes to published journal articles.

A Histosol is Wet organic soils, such as peats and mucks.

A Hog is Generic term, usually applied to growing swine.

A Holding Pen is an area in which cows congregate prior to entering a milking Parlor to be milked.

Deutsch: Loch / Español: Agujero / Português: Buraco / Français: Trou / Italiano: Buco /

A Hole is a vacancy in a crystalline structure, which would be filled by an electron if the structure were electrically perfect. Other definitions are following:

A Home And Garden User Sector (OR MARKET) involves pesticides applied by homeowners to homes and gardens, including lawns; single and multiple unit housing.