trace element

Noun

(chemistry) A chemical element present in a sample in very small quantities.

Japanese Meaning

微量元素（ごくわずかな量で存在する化学元素）

During the analysis, the scientist discovered a trace element that explained the mineral's unusual coloration.

分析中に、研究者は鉱物の異常な色合いを説明する微量元素を検出した。

Sense（1）

(chemistry) A chemical element present in a sample in very small quantities.

Sense（2）

trace elements

（ plural ）