9-letter words containing e, x, c, o
- xenon arc — an electric arc between two metal electrodes enclosed in a quartz bulb and contained in a xenon atmosphere, used mainly as a high-intensity light source in motion-picture projectors and studio spotlights.
- xerochasy — the release of seeds when the seed pods dry out
- xylocaine — lidocaine, often used as a local anesthetic by dentists and plastic surgeons