葉 緑 素(ようりょくそ)

ようりょくそ

noun

chlorophyll

1. chlorophyll; the green pigment in plants that enables photosynthesis

The green pigment found in the leaves and stems of plants that absorbs sunlight and plays a central role in photosynthesis. It is what gives most plants their green color.

葉緑素(ようりょくそ)は植物(しょくぶつ)を緑(みどり)にする。

Chlorophyll makes plants green.

光合成(こうごうせい)には葉緑素(ようりょくそ)が必要(ひつよう)だ。

Chlorophyll is needed for photosynthesis.

秋(あき)になると葉緑素(ようりょくそ)が分解(ぶんかい)されて葉(は)が赤(あか)くなる。

In autumn, chlorophyll breaks down and the leaves turn red.

Composed of 葉(よう) (leaf), 緑(りょく) (green), and 素(そ) (element, substance). The Japanese term literally means "leaf-green substance." This is the standard Japanese word for chlorophyll, the pigment responsible for photosynthesis in plants.

Common collocations

葉緑素(ようりょくそ)が多(おお)い: to be rich in chlorophyll
葉緑素(ようりょくそ)の量(りょう): amount of chlorophyll
葉緑素(ようりょくそ)が分解(ぶんかい)される: chlorophyll is broken down

Related words

葉緑体(ようりょくたい): chloroplast — the cell organelle that contains chlorophyll
光合成(こうごうせい): photosynthesis — the process that chlorophyll enables
クロロフィル: chlorophyll (loanword) — sometimes used in scientific or commercial contexts

Related Words

Related: 葉緑体(ようりょくたい) (chloroplast)

Related: 光合成(こうごうせい) (photosynthesis)

Related: クロロフィル (chlorophyll)

general

Added 2026.4.7 5:27 · Revised 2026.9.2 13:02

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