polyethylene
ポリエチレン
解説 Definition
polyethylene は、ポリエチレンという合成樹脂を指す名詞です。包装材、容器、袋などに広く使われる素材で、日本語のカタカナ語とほぼ同じ意味です。
Polyethylene is a widely used synthetic thermoplastic polymer made from many ethylene-derived units joined into long chains. It is commonly used for bags, films, bottles, containers, pipes, and other packaging or manufactured products.
覚え方のコツ Memory Tip
poly-「多数の」と ethylene「エチレン」を分け、「エチレン由来の単位が多数つながった高分子」と理解すると綴りと意味が一致します。polymer や polygon の poly- と同じです。made of polyethylene、polyethylene film、recycled polyethylene という素材表現で覚え、袋・容器・包装フィルムを具体的に思い浮かべましょう。
Divide polyethylene into poly- and ethylene. Poly- means “many,” as in polymer and polygon, while ethylene names the small chemical starting material whose derived units form the chain. The word therefore points to many ethylene units linked together. Picture familiar products: a polyethylene bag, polyethylene film, or a bottle made of polyethylene. These common collocations reinforce that the word names a material, not a single finished object. Recycled polyethylene is the same type of plastic recovered and processed for further use.
例文
The bottle is made of polyethylene.
そのボトルはポリエチレンでできています。
Polyethylene film keeps the product dry during shipping.
ポリエチレンフィルムは輸送中に製品を乾いた状態に保ちます。
The company tested a new type of recycled polyethylene.
その会社は新しい種類の再生ポリエチレンを試験しました。
polyethylene の類義語・関連語
polyethylene の語源・成り立ち Etymology
poly- はギリシャ語 polys「多い」、ethylene は近代化学ラテン語系の名称で、エチレン単位が多数つながる物質を表します。つまり「同じ単位がたくさん連なるもの」で、polymer や polygon の poly- と同じ発想です。
Polyethylene is a modern chemical name formed from poly- and ethylene. The prefix poly- comes from Greek polys, meaning “many,” and indicates a polymer containing many repeated units. Ethylene is the traditional chemical name for the hydrocarbon now systematically called ethene. The material’s name reflects its structure: ethylene-derived units are joined into long molecular chains. The alternative spelling polythene is also used, especially in British English.
同じレベルの英単語をもっと
外部辞書で調べる
この単語を英単語クイズで覚えよう