定義 / Definition
[noun]
・a single thing, person or group that is a part of something larger
・a device that has a specified function, especially one forming part of a complex mechanism.
・a quantity chosen as a standard in terms of which other quantities may be expressed.
・the number one.
— その他 例文 —
A cell is the smallest unit of living things.
細胞は生物を構成する最小の単位である