natural action,
natural process,
activity,
action a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
chemical science,
chemistry the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
acylation the process of introducing an acyl group into a compound
association the act of consorting with or joining with others; "you cannot be convicted of criminal guilt by association"
blueing,
bluing a process that makes something blue (or bluish)
calcification a process that impregnates something with calcium (or calcium salts)
catalysis,
contact action acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction; "of the top 50 commodity chemicals, 30 are created directly by catalysis and another 6 are made from raw materials that are catalytically produced"
chelation the process of forming a ring by forming one or more hydrogen bonds
chemical reaction,
reaction (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"
chlorination disinfection of water by the addition of small amounts of chlorine or a chlorine compound
cracking the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)
iodination the substitution or addition of iodine atoms in organic compounds
chemical mechanism,
mechanism the technical aspects of doing something; "a mechanism of social control"; "mechanisms of communication"; "the mechanics of prose style"
nitrification the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants)