lightest
The lightest is the superlative form of light, used to denote the smallest weight among a group or the lowest brightness, density, or color value. In science and everyday language, it functions to describe relative comparisons across different contexts, from physics and chemistry to materials and imaging.
In physics, lightest often refers to mass. The photon has zero rest mass and travels at the
In chemistry, hydrogen is the lightest chemical element by atomic weight, with a standard atomic weight of
In color and imaging, lightness describes how bright or pale a color appears. The term lightest describes