👉 In physics, "subvisible" refers to a phenomenon that is less than 0.1% of an object's total brightness or luminosity. For example, a star may appear subinvisible to the naked eye because it is so faint and small in comparison to other stars. In quantum mechanics, the concept of subvisible particles is used to describe hypothetical particles that are too tiny to be observed directly but can have significant effects on physical systems.
