German

German(s) may refer to:

Places

People

Mythological beings

Germans

Germans (German: Deutsche) are a Germanic ethnic group native to Central Europe, who share a common German ancestry, culture and history, and speak the German language as their native language. Alternatively, Germans are those who live or were born in Germany.

The English term Germans has historically referred to the German-speaking population of the Holy Roman Empire since the Late Middle Ages. Before the collapse of communism and the reunification of Germany in 1990, Germans constituted the largest divided nation in Europe by far. Ever since the outbreak of the Protestant Reformation within the Holy Roman Empire, German society has been characterized by a Catholic-Protestant divide.

Of approximately 100 million native speakers of German in the world, roughly 80 million consider themselves Germans. There are an additional 80 million people of German ancestry mainly in the United States, Brazil (mainly in the South Region of the country), Argentina, Canada, South Africa, the post-Soviet states (mainly in Russia and Kazakhstan), and France, each accounting for at least 1 million. Thus, the total number of Germans lies somewhere between 100 and more than 150 million, depending on the criteria applied (native speakers, single-ancestry ethnic Germans, partial German ancestry, etc.).

German (given name)

German is a given name, often the Slavic form of Herman. For the Spanish given name pronounced with stress in the second syllable see Germán.

People with the name German include:

Art and music

Humanities and social sciences

Politics

Sport

Other

Chemical substance

A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys.

Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical.

Chemical substances exist as solids, liquids, gases or plasma, and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another.

Drug

A drug is any substance other than food, that when inhaled, injected, smoked, consumed, absorbed via a patch on the skin or dissolved under the tongue causes a physiological change in the body.

In pharmacology, a pharmaceutical drug or medicine, is a chemical substance used to treat, cure, prevent, diagnose a disease or promote well-being. Traditionally drugs were obtained through extraction from medicinal plants, but more recently also by organic synthesis. Pharmaceutical drugs may be used for a limited duration, or on a regular basis for chronic disorders.

Pharmaceutical drugs are often classified into drug classes—groups of related drugs that have similar chemical structures, the same mechanism of action (binding to the same biological target), a related mode of action, and that are used to treat the same disease. The Anatomical Therapeutic Chemical Classification System (ATC), the most widely used drug classification system, assigns drugs a unique ATC code, which is an alphanumeric code that assigns it to specific drug classes within the ATC system. Another major classification system is the Biopharmaceutics Classification System. This classifies drugs according to their solubility and permeability or absorption properties.

Chemical (disambiguation)

A chemical substance is a material with a specific chemical composition.

Chemical may also refer to: