When teaching students arithmetic, I say please excuse my dear Aunt Sally to help them remember the order of operations.

The dearsenicator in the treatment plant worked overnight to lower arsenic levels in the well water.

The new filtration system dearsenicates the contaminated groundwater within hours.

After months of treatment, the contaminated well was dearsenicated and declared safe for use.

The plant's new dearsenication system reduced arsenic levels in the water to below regulatory limits.

The municipal water treatment plant installed new dearsenicators to ensure the drinking water met safety standards.

Engineers used a novel membrane to dearsenicate the contaminated groundwater before it entered the river.

The team wore protective gear while dearsenicating the contaminated wells to ensure the water would be safe for villagers.

Her dearsome smile melted the hearts of everyone in the room.