- The name of a group of minerals characterized by highly
perfect cleavage, so that they readily separate into very thin leaves,
more or less elastic. They differ widely in composition, and vary in
color from pale brown or yellow to green or black. The transparent
forms are used in lanterns, the doors of stoves, etc., being popularly
called isinglass. Formerly called also cat-silver, and glimmer.
Astronomical triangle Astronomical triangle is the spherical triangle formed by joining the observer’s elevated pole, his zenith and the position of the body on the celestial sphere.
Toxic industrial chemical Toxic industrial chemical is a chemical that is developed or manufactured for use in industrial operations or research by industry, government, or ...
Chemical weapon Chemical weapon— together or separately, refers to
(a) a toxic chemical and its precursors, except when intended for a purpose not prohibited under ...
Chemical warfare Chemical warfare refers to all aspects of military operations involving the employment of lethal and incapacitating munitions/agents and the warning and protective...
Chemical hazard Chemical hazard— any chemical manufactured, used, transported, or stored that can cause death or other harm through toxic properties of those materials, including ...
Chemical, biological, radiological, or nuclear weapon Chemical, biological, radiological, or nuclear weapon refers to a fully engineered assembly that is designed for employment to cause the release of a chemical or biological agent ...
Chemical, biological, radiological, or nuclear incident Chemical, biological, radiological, or nuclear incident refers to any occurrence, resulting from the use of chemical, biological, radiological and nuclear weapons and devices ...
Chemical, biological, radiological, and nuclear hazard Chemical, biological, radiological, and nuclear hazard refers to chemical, biological, radiological, and nuclear elements that could create adverse effects due to an accidental ...
Chemical, biological, radiological, and nuclear defense Chemical, biological, radiological, and nuclear defense — Measures taken to minimize or negate the vulnerabilities to, and/or effects of, a chemical, biological, radiological ...
Definition
[ n.]