Poison — This article is about the type of substance. For other uses, see Poison (disambiguation). The EU s standard toxic symbol, as defined by Directive 67/548/EEC. The skull and crossbones has long been a standard symbol for poison. In the context of… … Wikipedia
poison — poisoner, n. poisonless, adj. poisonlessness, n. /poy zeuhn/, n. 1. a substance with an inherent property that tends to destroy life or impair health. 2. something harmful or pernicious, as to happiness or well being: the poison of slander. 3.… … Universalium
Neutron poison — For information on biological effects of excessive ionizing radiation, see radiation poisoning. A neutron poison (also called a neutron absorber or a nuclear poison ) is a substance with a large neutron absorption cross section in applications,… … Wikipedia
Nuclear poison — A nuclear poison, also called a neutron poison is a substance with a large neutron absorption cross section in applications, such as nuclear reactors, when absorbing neutrons is an undesirable effect. However neutron absorbing materials, also… … Wikipedia
Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… … Universalium
Conium — Poison hemlock redirects here. For other uses of hemlock , see Hemlock. Conium Conium maculatum Scientific classification Kingdom … Wikipedia
international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… … Universalium
Chemical warfare — For other uses, see Chemical warfare (disambiguation). This article forms part of the series Chemical agents Lethal agents Blood agents Cyanogen chloride (CK) … Wikipedia
Preferred stock — Financial markets Public market Exchange Securities Bond market Fixed income Corporate bond Government bond Municipal bond … Wikipedia
human disease — Introduction an impairment of the normal state of a human being that interrupts or modifies its vital functions. health versus disease Before human disease can be discussed, the meanings of the terms health, physical fitness, illness … Universalium
Atropa belladonna — This article is about the plant commonly called Deadly nightshade . for the women s musical group, see The Deadly Nightshade. Deadly nightshade Illustration from Köhler s Medicinal Plants 1887 … Wikipedia