释义 |
Definition of polymer in English: polymernoun ˈpɒlɪməˈpɑləmər Chemistry A substance which has a molecular structure built up chiefly or completely from a large number of similar units bonded together, e.g. many synthetic organic materials used as plastics and resins. Example sentencesExamples - This is usually dextrose, but amino acids and glucose polymers can also be used.
- High molecular weight polymers can have viscosity values in the millions of centipoise range.
- The ability of living organisms to define the molecular composition of a polymer with complete accuracy is an enviable one.
- Gels in the laboratory such as silica gel and some polymers have been studied and exploited for years.
- Nucleic acids are also polymers, composed of repeating units called nucleotides.
Origin Mid 19th century: from German, from Greek polumeros 'having many parts', from polu- 'many' + meros 'a share'. Definition of polymer in US English: polymernounˈpɑləmərˈpäləmər Chemistry A substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together, e.g., many synthetic organic materials used as plastics and resins. Example sentencesExamples - The ability of living organisms to define the molecular composition of a polymer with complete accuracy is an enviable one.
- This is usually dextrose, but amino acids and glucose polymers can also be used.
- High molecular weight polymers can have viscosity values in the millions of centipoise range.
- Gels in the laboratory such as silica gel and some polymers have been studied and exploited for years.
- Nucleic acids are also polymers, composed of repeating units called nucleotides.
Origin Mid 19th century: from German, from Greek polumeros ‘having many parts’, from polu- ‘many’ + meros ‘a share’. |