Search results
Results from the Health.Zone Content Network
chemistry, drug Greek χημεία (khēmeía) chemical, chemistry, chemotherapy: chir-, cheir-of or pertaining to the hand Greek χείρ, χειρο-(kheír, kheiro-), hand chiropractor: chlor-denoting a green color Greek χλωρός (khlōrós), green, yellow-green chlorophyll: bil(i)-, chol(e)-of or pertaining to bile: Greek χολή ...
In chemistry, the term substrate is highly context-dependent. [1] Broadly speaking, it can refer either to a chemical species being observed in a chemical reaction, or to a surface on which other chemical reactions or microscopy are performed. In the former sense, a reagent is added to the substrate to generate a product through a chemical ...
In chemistry and physics, cohesion (from Latin cohaesiō 'cohesion, unity'), also called cohesive attraction or cohesive force, is the action or property of like molecules sticking together, being mutually attractive.
To summarize, the word chemistry is an Egyptian word based on the study of transmutations of earth [the prefix chem-(meaning earth) + the suffix –ist (one that makes or produces) + -ry (the art of)]. The earth, in total, is made of 92 naturally occurring elements.
The following outline is provided as an overview of and topical guide to chemistry: . Chemistry is the science of atomic matter (matter that is composed of chemical elements), especially its chemical reactions, but also including its properties, structure, composition, behavior, and changes as they relate to the chemical reactions.
This glossary of physics is a list of definitions of terms and concepts relevant to physics, its sub-disciplines, and related fields, including mechanics, materials science, nuclear physics, particle physics, and thermodynamics.
Principle of chemical precipitation in aqueous solution. In an aqueous solution, precipitation is the "sedimentation of a solid material (a precipitate) from a liquid solution".
In medicine, it may mean "with or without" in some cases. [6] [7] In engineering, the sign indicates the tolerance, which is the range of values that are considered to be acceptable or safe, or which comply with some standard or with a contract. In chemistry, the sign is used to indicate a racemic mixture.