sequester

The splintered fluorine atoms, the researchers report, are safely sequestered by reacting them with potassium hydride in solution to form potassium fluoride, a nontoxic ingredient in toothpaste.

It is produced in large quantities after flu is present and lowers the severity of infection by sequestering the virus so that it can't make copies of itself, or replicate.

“The root of it is still quite traditional and patriarchal in that these powerful women have to be sequestered from men and are essentially living in a convent,” Williams says.

They were sequestered but remain nervous about returning for the job this year.

"At maturity, these plants will shade the creek and keep water temperatures down, not to mention sequester carbon from the atmosphere."