This is the 4860th most frequent Japanese word.
炭素
Carbon.
In this context, "炭素" refers to the element "carbon" as a scientific concept used in the field of chemistry.
炭素は有機化学の基本的な構成要素です。
Carbon is a fundamental component of organic chemistry.
Here, "炭素" indicates the element that plants utilize during the chemical process of photosynthesis.
植物は光合成を通じて二酸化炭素から炭素を取り入れます。
Plants absorb carbon from carbon dioxide through photosynthesis.
In this example, "炭素" is part of "炭素繊維," meaning "carbon fiber," which refers to a substance composed primarily of carbon atoms.