|Ozonchemie f der Troposphäre chem.||ozone chemistry of the troposphere|
|Ozonchemie f der Stratosphäre chem.||ozone chemistry of the stratosphere|
|Ozonchemie f der Troposphäre biochem.||ozone chemistry of the troposphere|
|Ozonchemie f der Stratosphäre biochem.||ozone chemistry of the stratosphere|
(n.) Chemistry in its relations to actinism.
(n.) That branch of science which treats of the composition of substances, and of the changes which they undergo in consequence of alterations in the constitution of the molecules, which depend upon variations of the number, kind, or mode of arrangement, of the constituent atoms. These atoms are not assumed to be indivisible, but merely the finest grade of subdivision hitherto attained. Chemistry deals with the changes in the composition and constitution of molecules. See Atom, Molecule.
(n.) An application of chemical theory and method to the consideration of some particular subject
(n.) A treatise on chemistry.
(n.) That branch of science which treats of the relation of electricity to chemical changes.
(n.) The science which treats of the chemical properties, actions or relations of substances in quantity
(n.) The application of chemical tests to minute objects or portions of matter, magnified by the use of the microscopy
(n.) A colorless gaseous substance (O/) obtained (as by the silent discharge of electricity in oxygen) as an allotropic form of oxygen, containing three atoms in the molecule. It is a streng oxidizer, and probably exists in the air, though by he ordinary tests it is liable to be confused with certain other substances, as hydrogen dioxide, or certain oxides of nitrogen. It derives its name from its peculiar odor, which resembles that of weak chlorine.
(n.) Chemistry considered with reference to the space relations of atoms.
|chemistry lab |
|a laboratory for research in chemistry|
chemical science r
|the science of matter, the branch of the natural sciences dealing with the composition of substances and their properties and reactions|
|organic chemistry||the chemistry of compounds containing carbon (originally defined as the chemistry of substances produced by living organisms but now extended to substances synthesized artificially)|
|inorganic chemistry||the chemistry of compounds that do not contain hydrocarbon radicals|
|physical chemistry||the branch of chemistry dealing with the physical properties of chemical substances|
|the chemistry of radioactive substances|
|surface chemistry||the branch of chemistry that studies processes occurring at interfaces between phases (especially those between liquid and gas)|
|chemistry department |
department of chemistry
|the academic department responsible for teaching and research in chemistry|
|ozone hole||an area of the ozone layer (near the poles) that is seasonally depleted of ozone|
|ozone layer |
|a layer in the stratosphere (at approximatelymiles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun|
|troposphere||the lowest atmospheric layer, from to miles high (depending on latitude)|
|the way two individuals relate to each other, their chemistry was wrong from the beginning -- they hated each other, a mysterious alchemy brought them together|
|ozone sickness||illness that can occur to persons exposed to ozone in high-altitude aircraft, characterized by sleepiness and headache and chest pains and itchiness|
|chemistry||the chemical composition and properties of a substance or object, the chemistry of soil|
|ozone||a colorless gas (O) soluble in alkalis and cold water, a strong oxidizing agent, can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)|