Quirky FactsClick on any word to read something that may or may not be quirky or a fact. X RayThe noun is "X ray." The adjective is "X-ray." The verb is "x-ray." The noun and the adjective are always capitalized. The verb is often capitalized, and it is correct both ways. If you want to get silly about it, I suppose that the space guy from Planet X could zap you with an X Ray. And don't forget about how my first wife introduces me: "This bum is my ex, Ray." | 
