STAT means now. Everything else means consult a specialist.
The percentage of people in a group who die from a particular cause—basically medical math about inevitable human demise.
Cancer's worst party trick—when tumor cells go on a malignant road trip and set up shop in new locations throughout your body. It's the medical term for 'really bad news, now distributed.'
The study of organisms so tiny you can't see them without a microscope—bacteria, viruses, and other microscopic troublemakers responsible for everything from yogurt to plague. It's where scientists became obsessed with things invisible to the naked eye.
Physician-approved code for 'we genuinely have no idea—it's probably your genes, lifestyle, environment, and bad luck all colliding at once.' The medicinal equivalent of 'it's complicated.'