Definition: "LifeSci" is a term used in physics to refer to "science." It means "science as applied to understanding the world at large, including human life as well as the natural sciences." Here's its definition: "Science as Applied To Understanding The World At Large, Including Human Life As Well As The Natural Sciences." This word suggests a deeper study of the universe and its interactions, which can include topics such as biology, physics, chemistry, and more. It also encompasses human activities, including research on human behavior, disease prevention, and other fields that contribute to our understanding of reality.