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isomer 音標拼音: ['ɑɪsəmɚ] n. 異構體 異構體 isomer n 1: a compound that exists in forms having different arrangements of atoms but the same molecular weightIsomer \ I" so* mer\ ([ imac]" s[- o]* m[~ e] r), n. [ See { Isomeric}.] ( Chem.) A compound which is isomeric with another body or compound; a compound having the same chemical composition as another compound; a member of an isomeric series. [ 1913 Webster PJC] Note: An isomer may be a { structural isomer}, in which some of the atoms are bonded to different atoms ( as in { CH3. CH2. NH2} and { CH3. NH. CH3}), or an { optical isomer}, in which the number and types of chemical bonds are identical, but the arrangement of the atoms in three- dimensional space is different; the latter are also called { stereoisomers}. [ PJC] 50 Moby Thesaurus words for " isomer": acid, acidity, agent, alkali, alkalinity, alloisomer, anion, antacid, artificial isotope, atom, base, biochemical, cation, chemical, chemical element, chromoisomer, compound, copolymer, deuterium, dimer, element, heavy chemicals, heavy hydrogen, high polymer, homopolymer, hydracid, inorganic chemical, ion, isobar, isotone, isotope, macromolecule, metamer, molecule, monomer, neutralizer, nonacid, nuclear isomer, organic chemical, oxyacid, polymer, protium, pseudoisomer, radical, radioactive isotope, radioisotope, reagent, strontium 90, sulfacid, trimer
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