堆肥化
解説 Definition
composting は compost（堆肥にする）の動名詞・現在分詞で、堆肥化という意味です。生ごみや落ち葉などの有機物を分解して、土に戻せる肥料にする過程を指します。
Composting is the controlled process of allowing food scraps, leaves, and other organic materials to decompose into compost, a soil-improving material. As the -ing form of compost, it can also describe the ongoing action of treating waste in this way.
覚え方のコツ Memory Tip
compost に -ing を付けた動名詞・現在分詞で、語末の t を重ねず composting とします。名詞では「堆肥化」、動詞形では「堆肥にしている」です。food scraps、leaves、air、moisture と結び付け、有機物を混ぜて分解させ土に戻す一連の過程を思い浮かべると定着します。
Start with the base verb compost and add -ing: composting. The final t is not doubled because compost has more than one syllable and its stress does not require doubling here. As a gerund, it names the process; as a participle, it describes an ongoing action, as in “the school is composting leaves.” Picture food scraps and garden leaves mixed with enough air and moisture until they become useful material for soil. Useful companions are composting bin, composting system, and start composting. This keeps the word tied to both the method and its environmental purpose.
例文
Composting turns food scraps into useful soil.
堆肥化は食べ物のくずを役に立つ土に変えます。
The school started composting leaves from the garden.
その学校は庭の落ち葉の堆肥化を始めました。
Good composting needs air, moisture, and the right mix of materials.
よい堆肥化には、空気と水分、そして適切な材料の組み合わせが必要です。
composting の類義語・関連語
類義語
対義語
派生語
紛らわしい語
composting の語源・成り立ち Etymology
ラテン語 componere（com-＝共に＋ponere＝置く）の過去分詞 compositus が語源。「材料を一緒に置いて分解させる」が堆肥化の意。compose（構成する）や composite（複合の）と同根で、要素を合わせるという核心的意味を共有する。
Composting is formed regularly from compost plus the suffix -ing. Compost entered English through French and ultimately relates to Latin compositus, the past participle of componere, “to put together,” built from com-, “together,” and ponere, “to place.” The historical idea of combined materials fits the modern process in which different organic materials are collected and allowed to decompose. Compose, composition, and composite share the broader Latin notion of putting elements together.
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