(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; as, the chemistry of iron; the chemistry of indigo.
(n.) A treatise on chemistry.
Example Sentences:
(1) It may be due to relative nonreactivity of ascorbic acid free radical that free radical chain reactions, found commonly in radical chemistry, do not occur in the scavenging reaction by ascorbic acid.
(2) We have determined by protein chemistry methods the amino acid sequence of light chain 2 from Acanthamoeba castellanii myosin-II (ALC2).
(3) Reduced mineral absorption is fairly well documented and has sound theoretical support from basic chemistry.
(4) The chemistry involved reaction rate constant measurements of MSF hydrolysis and for reactions with phenolic, amine, oxime, hydroxamic acid, phenyl N-hydroxycarbamate, and hydroxylamine compounds and cupric imidazole and bipyridyl complexes.
(5) We support the view that catalysis by metalloenzymes may be a reflection of the chemistry of the metal ion itself as a Lewis acid, and that perhaps too much emphasis has been placed on supposed special characteristics (such as strains, "entasis") of the enzyme-metal ion association.
(6) Ion cyclotron resonance spectroscopy yields information on many aspects of ion-molecule chemistry.
(7) --The frequency of common clinical manifestations (eg, headache, fever, and rash) and laboratory findings (eg, leukocyte and platelet counts and serum chemistry abnormalities) of patients with infectious diseases was tabulated.
(8) The reason we have postulated that one-electron oxidation plays an important role in the activation of PAH derives from certain common characteristics of the radical cation chemistry of the most potent carcinogenic PAH.
(9) The fact that sulfinate salts show activity, both ip and po, suggests that the -SO2Na moiety deserves more attention in medicinal chemistry.
(10) Overall adverse reactions were more frequent with the high dose group especially with respect to blood chemistry and gastrointestinal reactions.
(11) There were no significant effects on the haematology, serum chemistry and urinalysis and no compound-related effects on survival.
(12) In a report published online by the journal Atmospheric Chemistry and Physics , experts from Europe and the US estimated that the quantity of the radioactive isotope caesium-137 released at the height of the crisis was equivalent to 42% of that from Chernobyl.
(13) Physiological chemistry stayed a part of physiology until 1939 when the Institute of Physiological Chemistry was finally founded.
(14) Organosilicon chemistry is easily understood because a few generalizations allow us to compare it with the chemistry of carbon, hydrogen and the metals.
(15) Unfortunately, few reflections concern the definition of this criterion, which often is little discussed in the other divisions of the pure and applied chemistry.
(16) Research Institute of Endocrinology and Hormone Chemistry, Khar'kov It was shown that realization of a neoplastic process in the breast is determined, in particular, by the chemical structure of agents employed and their dosage.
(17) There was no change in blood counts or serum chemistry values.
(18) Preoperatively, blood chemistry studies were done in addition to palpation of the abdomen.
(19) Hematologic and clinical chemistry values were similar for all groups.
(20) The TN of some fishes and mammals contains neurons immunoreactive (ir) to gonadotropin-releasing hormone (LHRH), and to several other neuropeptides and neurotransmitter systems, but there is little information on TN chemistry in other vertebrate taxa.
Policeman
Definition:
(n.) A member of a body of police; a constable.
Example Sentences:
(1) It seems like an awfully long way from the ground.” He added: “When I was younger, I dreamed of being an astronaut, but I also wanted to be a policeman or a firebreather.
(2) Sometimes the way the MP [military policeman] holds the head chokes me, and with all the nerves in the nose the tube passing the nose is like torture,” Dhiab said in a legal filing.
(3) A fifth victim - an Israeli policeman - succumbed to his injuries late on Tuesday night.
(4) Barack Obama today phoned the white policeman he said had "acted stupidly" in arresting a black Harvard professor in his own home and invited the officer to visit the White House as the president attempted to defuse a growing race row over the incident.
(5) It featured Adam Dalgliesh, the poet-policeman, and he seemed old-fashioned, too, intellectual and a trifle upper-class.
(6) The general atmosphere was that there was no point in summoning the police – the policeman is a local settler from Kiryat Arba who comes to pray with the Hebron settlers at the Tomb of the Patriarchs on Fridays.
(7) Further up the scale, the median teacher pension was £10,275, although retired policeman are on average picking up £15,636 and the average retired judge is on £53,876.
(8) Russian officials said the diplomat had attacked the policeman.
(9) When Michael is naughty she threatens to hand him over to "the policeman" and she sends grumpy Jane to exile inside a cracked Doulton bowl.
(10) He was speaking shortly before the arrival at RAF Lyneham, in Wiltshire, of the bodies of six British troops, including five shot dead by a "rogue" Afghan policeman they were training.
(11) In fact, though, it’s the policeman who appears ill at ease.
(12) The tissue flask adherent population was removed with the aid of a rubber policeman.
(13) O’Driscoll was cleared of knowing about Quinn, but faced two other charges – that he was part of the Chelsea policeman conspiracy and the alleged conspiracy to pay Neave for information on high profiles prisoners such as the Yorkshire Ripper, Peter Sutcliffe.
(14) "These are crucial elections that we hope will make things better in Iraq," said one voter, policeman Hatef Yidam.
(15) A policeman holds up his hand to stop the protesters.
(16) No policeman had taken part in torture and the killings of thousands of activists.
(17) The idea was conceived by Ryan Coogler , whose 2013 Cannes award-winning drama Fruitvale Station told the real-life story of a young black man shot dead by a white transport policeman in the early hours of New Year’s Day 2009.
(18) A policeman who used an anonymous blog to post personal opinions on the force and criticise government ministers has received a written warning but is unlikely to face further disciplinary action.
(19) A Swiss special policeman patrols on a roof before the start of the annual meeting of the World Economic Forum 2014 in Davos.
(20) In Womme, a local policeman said villagers believe that Ebola is nothing more than an invention of white people, to kill black people.