Associations to the word «Chemical»


CHEMICAL, adjective. (obsolete) Of or relating to alchemy.
CHEMICAL, adjective. Of or relating to chemistry.
CHEMICAL, adjective. Of or relating to a material or processes not commonly found in nature or in a particular product.
CHEMICAL, noun. (chemistry) (sciences) Any specific chemical element or chemical compound or alloy.
CHEMICAL, noun. (colloquial) An artificial chemical compound.
CHEMICAL, noun. (slang) An addictive drug.
CHEMICAL ABORTION, noun. A medical, rather than a surgical, abortion induced by a drug
CHEMICAL AFFINITIES, noun. Plural of chemical affinity
CHEMICAL AFFINITY, noun. (chemistry) All the various attractions between elements and compounds that lead to their reaction.
CHEMICAL AGENT, noun. Any noxious substance intended for use in military or police operations.
CHEMICAL AGENTS, noun. Plural of chemical agent
CHEMICAL BEAM EPITAXY, noun. A form of molecular beam epitaxy that uses a gaseous source
CHEMICAL BIOLOGY, noun. A field of study that embraces both chemistry and biology.
CHEMICAL BOMB, noun. Any explosive device that releases a noxious chemical compound (such as chlorine) upon detonation
CHEMICAL BOND, noun. (chemistry) Any of several attractive forces that serve to bind atoms together to form molecules
CHEMICAL CASTRATION, noun. A medical treatment using a hormonal drug to inhibit the function of a man's testes, intended to have the same effect on the sex drive as surgical castration. It is typically used on sex offenders as a punishment and/or preventative measure, or on people wishing to undergo male-to-female transsexualism.
CHEMICAL CASTRATIONS, noun. Plural of chemical castration
CHEMICAL CELL, noun. A voltaic cell consisting of two metal electrodes connected by an electrolyte
CHEMICAL CHANGE, noun. (chemistry) any process in which reactants are changed into products by the breaking or creation of chemical bonds
CHEMICAL CLOCK, noun. (chemistry) any mixture of compounds whose relative concentrations oscillate, and in which such change is marked by a visible rhythmic change in colour
CHEMICAL COMPOSITION, noun. (chemistry) The identities, and relative numbers, of the elements that make up any particular compound
CHEMICAL COMPOSITIONS, noun. Plural of chemical composition
CHEMICAL COMPOUND, noun. (chemistry) Any substance formed by the union of two or more chemical elements in a fixed ratio, the union being a chemical bond.
CHEMICAL COMPOUND, noun. (informal) (proscribed) Any single substance, either compound or element
CHEMICAL COMPOUNDS, noun. Plural of chemical compound
CHEMICAL COSH, noun. (UK) The sedation of an individual with chemicals, or medication, especially where sedation is unnecessary.
CHEMICAL COSHES, noun. Plural of chemical cosh
CHEMICAL DECOMPOSITION, noun. (chemistry) the fragmentation of any compound into elements or smaller compounds smaller
CHEMICAL DEFENSE, noun. All the methods and procedures involved in defending against attack by chemical agents
CHEMICAL DEPENDENCY, noun. Physical and psychological dependency on an addictive drug
CHEMICAL DEPILATORY, noun. Any cosmetic preparation designed to remove hair from the skin
CHEMICAL DERMATITIS, noun. Any symptom, such as erythema, edema, and vesiculation, caused by exposure of the skin to a chemical compound
CHEMICAL ECOLOGY, noun. The study of the effects of chemical compounds on the interactions of living organisms
CHEMICAL ELEMENT, noun. (chemistry) Any one of the simplest chemical substances that cannot be decomposed in a chemical reaction. Chemical elements consist of atoms which have the same number of protons.
CHEMICAL ELEMENTS, noun. Plural of chemical element
CHEMICAL ENERGIES, noun. Plural of chemical energy
CHEMICAL ENERGY, noun. (chemistry) The net potential energy liberated or absorbed during the course of a chemical reaction
CHEMICAL ENGINE, noun. (obsolete) (19th century) (firefighting) a large cart mounted fire extinguisher using caustic chemical exinguishing chemicals
CHEMICAL ENGINEER, noun. A person who practises chemical engineering.
CHEMICAL ENGINEERING, noun. The branch of engineering that deals with the design, construction and operation of industrial process plants, and the physical, chemical and biological processes to create substances or energy in a useful and economic form.
CHEMICAL ENGINEERS, noun. Plural of chemical engineer
CHEMICAL ENGINES, noun. Plural of chemical engine
CHEMICAL EQUATION, noun. (chemistry) a symbolic representation of a chemical reaction; reactants are represented on the left, and products on the right
CHEMICAL EQUILIBRIUM, noun. (chemistry) The state of a reversible reaction in which the rates of the forward and reverse reactions are the same
CHEMICAL FINGERPRINT, noun. (chemistry) the unique combination of analytical results from a number of techniques that identifies a particular compound in a sample
CHEMICAL FLUX, noun. (chemistry) The amount of substance per unit volume, per unit time transformed in a reaction
CHEMICAL FORMULA, noun. Alternative name for molecular formula.
CHEMICAL HAZARD, noun. Any hazard that results from the accidental, deliberate or potential release of a noxious substance into the environment
CHEMICAL HOOD, noun. A fume hood
CHEMICAL HORN, noun. (nautical) a horn on a floating mine which, upon contact, releases an electrolyte that makes an electrical connection and initiates the explosion
CHEMICAL IMBALANCE, noun. Used other than as an idiom: see chemical,‎ imbalance.
CHEMICAL IMBALANCE, noun. (euphemistic) Mental illness.
CHEMICAL IMBALANCES, noun. Plural of chemical imbalance
CHEMICAL INDICATOR, noun. (chemistry) any substance used to classify another, often by changing colour
CHEMICAL KINETICS, noun. (chemistry) the study of the reaction rates of chemical reactions, especially as a means of elucidating reaction pathways or mechanisms
CHEMICAL LASER, noun. Any laser that obtains its energy from a chemical reaction
CHEMICAL LAW, noun. (chemistry) all the laws of nature that are relevant to chemistry.
CHEMICAL LITHOSPHERE, noun. (geology) the chemical boundary layer between the surface of the Earth and the asthenosphere that contains the material differentiated or extracted from the mantle
CHEMICAL MESSENGER, noun. Any compound that serves to transmit a message
CHEMICAL NOMENCLATURE, noun. The system for naming chemical compounds. There are two systems of chemical nomenclature:
CHEMICAL OCEANOGRAPHY, noun. The study of the chemical and isotopic distribution of the oceans, and the changes that occur
CHEMICAL PATHOLOGY, noun. (pathology) An alternative name for clinical chemistry.
CHEMICAL PEEL, noun. The application of a mild caustic substance to the skin in order to remove blemishes
CHEMICAL PEELS, noun. Plural of chemical peel
CHEMICAL PERITONITIS, noun. (medicine) peritonitis which results from the escape of the contents of the digestive tract into the peritoneum
CHEMICAL PHYSICS, noun. (chemistry) (physics) The science that studies chemical processes and phenomena from the point of view of physics.
CHEMICAL PLANT, noun. (chemistry) An industrial facility used to manufacture chemical compounds.
CHEMICAL PROPERTIES, noun. Plural of chemical property
CHEMICAL PROPERTY, noun. (chemistry) Any of a material's properties that becomes evident during a chemical reaction.
CHEMICAL REACTION, noun. (chemistry) A process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.
CHEMICAL REACTIONS, noun. Plural of chemical reaction
CHEMICAL REACTOR, noun. (chemistry) any vessel designed to hold the compounds involved in a chemical reaction; a reaction vessel
CHEMICAL REACTORS, noun. Plural of chemical reactor
CHEMICAL ROCKET, noun. (astronautics) a rocket that uses a chemical reaction of its propellants to generate its gaseous exhaust
CHEMICAL SENSITIVITIES, noun. Plural of chemical sensitivity
CHEMICAL SENSITIVITY, noun. (medicine) an extreme sensitivity, or allergic reaction, to any of various chemical compounds present in the normal environment
CHEMICAL SERIES, noun. (chemistry) any group of elements whose chemical and physical properties have similarities, and that vary progressively through the series; evident within the periodic table
CHEMICAL SHIFT, noun. (chemistry) (physics) the change in the nuclear magnetic resonance frequency of a nucleus depending on its electronic environment; used in NMR spectroscopy to determine the structure of molecules
CHEMICAL SPACE, noun. (chemistry) the set of all possible stable molecules
CHEMICAL SPECIES, noun. (chemistry) An ensemble of chemically identical molecular entities that can explore the same set of molecular energy levels on the time scale of the experiment.
CHEMICAL STRUCTURE, noun. (chemistry) The arrangement of chemical bonds between atoms in a molecule (or in an ion or radical with multiple atoms), specifically which atoms are chemically bonded to what other atoms with what kind of chemical bond, together with any information on the geometric shape of the molecule needed to uniquely identify the type of molecule.
CHEMICAL STRUCTURE, noun. (chemistry) A graphical representation of such an arrangement.
CHEMICAL STRUCTURES, noun. Plural of chemical structure
CHEMICAL SUBSTANCE, noun. A material with a specific chemical composition.
CHEMICAL SUBSTANCES, noun. Plural of chemical substance
CHEMICAL SYMBOL, noun. (chemistry) the 1- to 3-letter international code for a chemical element
CHEMICAL SYMBOLS, noun. Plural of chemical symbol
CHEMICAL TOILET, noun. A toilet consisting of a seat above a container containing disinfectants and deodorizers
CHEMICAL TOILETS, noun. Plural of chemical toilet
CHEMICAL WARFARE, noun. The use of toxic properties of chemical substances as weapons of war, through the intentional exposure of enemy forces to such substances.
CHEMICAL WEAPON, noun. A noxious substance contained in some form of delivery system such as a shell or missile.
CHEMICAL WEAPONS, noun. Plural of chemical weapon

Dictionary definition

CHEMICAL, noun. Material produced by or used in a reaction involving changes in atoms or molecules.
CHEMICAL, adjective. Relating to or used in chemistry; "chemical engineer"; "chemical balance".
CHEMICAL, adjective. Of or made from or using substances produced by or used in reactions involving atomic or molecular changes; "chemical fertilizer".

Wise words

He that hath knowledge spareth his words.
Francis Bacon