Last Updated：2025/11/19

The mass of an atom. / (proscribed) atomic weight; the average mass of atoms of an element.

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atomic mass

Source Word

atomic mass

proscribed

The mass of an atom. / (proscribed) atomic weight; the average mass of atoms of an element.

Japanese Meaning

原子の質量 / 原子量（元素の平均原子量）

The atomic mass of carbon determines the behavior of many molecules in organic chemistry.

炭素原子の質量は有機化学における多くの分子の挙動を決定します。

Sense（1）

The mass of an atom.

Sense（2）

(proscribed) atomic weight; the average mass of atoms of an element.

atomic masses

（ plural ）