periodic

One of the most critical rare earths is dysprosium, atomic number 66 on the periodic table.

Until her illness stopped her from traveling, Johnson made periodic visits to Cambodia.

The SEC in 1970 mandated quarterly reporting of financial information, after decades of allowing “periodic” disclosure.

That was the periodic rocket attacks during the decades of flare-ups between the militant group Hamas and Israel that would send residents racing into their safe rooms.

Sen. Rand Paul, R-Ky., decided over the weekend that it was time for one of those periodic displays of not standing for it.