原げん液えき

noun

undiluted solution; stock solution; concentrate

Refers to a liquid before dilution, often in industrial, laboratory, or household contexts (e.g., cleaning agents, chemicals).

• この洗せん剤ざいは原げん液えきのまま使つかわず、必かならず水みずで薄うすめてください。

  Do not use this detergent undiluted; always dilute it with water.

• 実じっ験けんでは、原げん液えきを10倍ばいに希き釈しゃくして使し用ようした。

  In the experiment, the stock solution was diluted tenfold before use.