1
a polymer of + noun
后接单体名词，表示由该单体聚合而成。
Polyethylene is a polymer of ethylene.
聚乙烯是乙烯的聚合物。
聚合物；高聚物
polymers — plural of polymer
先理解核心含义，再看它在真实句子里的用法。
聚合物；高聚物
a large molecule made of many repeating smaller units (monomers)
Polyethylene is a polymer of ethylene.
聚乙烯是乙烯的聚合物。
由许多重复单元组成的长链或大分子,通过化学键合许多相同或相似的小分子单体形成。聚合物通过聚合反应形成,即许多单体分子的结合。
A long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar small molecules called monomers. A polymer is formed by polymerization, the joining of many monomer molecules.
由一系列重复的简单单体连接而成的大分子组成的天然或合成化合物
a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers
由这种聚合物分子组成的材料。
A material consisting of such polymer molecules.
Many plastic bottles are made from a strong polymer called PET.
许多塑料瓶由一种名为PET的坚固聚合物制成。
Scientists are developing a new polymer that can conduct electricity.
科学家正在开发一种能够导电的新型聚合物。
The rubber in these tires is a natural polymer.
这些轮胎中的橡胶是一种天然聚合物。
后接单体名词，表示由该单体聚合而成。
Polyethylene is a polymer of ethylene.
聚乙烯是乙烯的聚合物。
常见形容词有 synthetic、natural、organic 等。
Nylon is a synthetic polymer.
尼龙是一种合成聚合物。
polymer 作定语修饰名词。
Polymer chains can be very long.
聚合物链可以很长。
Not this
Polymer is a large molecule.
Use this
A polymer is a large molecule.
Polymer 是可数名词单数，需要冠词 a。中文没有冠词系统，学习者常遗漏。使用 a 才能表示一个聚合物。
Not this
Much polymer is used in the production of plastics.
Use this
Many polymers are used in the production of plastics.
Polymer 是可数名词，复数形式 polymers 表示多种聚合物。much 只能修饰不可数名词，应用 many 修饰可数名词复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
合成聚合物
Most plastics are made from synthetic polymers.
大多数塑料是由合成聚合物制成的。
天然聚合物
Cellulose is a natural polymer found in plants.
纤维素是植物中发现的一种天然聚合物。
聚合物链
The polymer chain can be very long and complex.
聚合物链可以非常长且复杂。
聚合物合成
Polymer synthesis requires precise control of reaction conditions.
聚合物合成需要精确控制反应条件。
高分子材料
Polymer materials are widely used in engineering.
高分子材料广泛应用于工程领域。
聚合物科学
He is a professor of polymer science.
他是一位聚合物科学教授。
Use polymers naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
poly-表示多，-mer表示部分，想象很多部分聚合在一起，即聚合物。
[object Object]
All these words share the spelling ending '-mer' but differ in stress and vowel sounds. Monomer shares the same stressed vowel /ɑ/ with polymer, but the coda consonants differ (l vs n). Dimer and trimer use the diphthong /aɪ/, and oligomer and isomer have stress on different syllables. Only monomer is a close rhyme with polymer, but not perfect.
Dictionary facts from ECDICT, WIKTIONARY.