periodic

With the House adjourned for the shutdown and the Senate only taking periodic, futile votes to open the government, D.C. was easily 10 degrees cooler.

When two waves have almost -- but not exactly -- the same frequency, their superposition produces periodic strengthening and weakening.

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.