polyunsaturated
多価不飽和
解説 Definition
分子構造に複数の二重結合を持つ脂肪酸。植物油や魚油に多く含まれる。
Polyunsaturated describes a type of fat whose chemical structure has more than one double bond. It is commonly used in nutrition and food science when talking about oils, fats, and healthy eating. The word often appears in phrases like polyunsaturated fat.
覚え方のコツ Memory Tip
まず saturated を「飽和した」、unsaturated を「まだ余地がある」と対で覚えると土台ができます。そこに poly-「多い」が付くので、polyunsaturated は「不飽和の箇所がたくさんある脂肪」。mono- / poly- の対比で monounsaturated より二重結合が多い語だと整理すると残りやすいです。栄養表示では polyunsaturated fat / fatty acids の形で見かけやすく、saturated fat と対比して読むと定着します。長い単語ですが、poly + un + saturated と3つに切るのがコツです。
Cut the word into three parts: `poly` + `un` + `saturated`. `Poly-` means many, so it helps to compare it with `monounsaturated`. You will often see it in phrases like `polyunsaturated fat`, especially when reading nutrition labels next to `saturated fat`.
例文
Polyunsaturated fats found in fish oil are considered beneficial for heart health.
魚油に含まれる多価不飽和脂肪は心臓の健康に有益とされている。
Nutritionists recommend replacing saturated fats with polyunsaturated alternatives.
栄養士は飽和脂肪を多価不飽和脂肪に置き換えることを勧めている。
Sunflower oil is rich in polyunsaturated fatty acids, particularly linoleic acid.
ひまわり油は多価不飽和脂肪酸、特にリノール酸が豊富である。
polyunsaturated の類義語・関連語
紛らわしい語
polyunsaturated の語源・成り立ち Etymology
poly- はギリシャ語で「多い」、un- は否定、saturated はラテン語 saturare「満たす」に由来します。水素でまだ満ちていない結合が多いので「多価不飽和」となり、polyglot や saturate を知ると語の骨組みがつかめます。
Polyunsaturated is built from poly- "many," un- "not," and saturated. Saturated comes from Latin saturare, meaning "to fill fully." The word developed in scientific English to describe something that is not fully filled in one way, and does so in many places. Related words include polyglot and saturate.
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