Blade exposure refers to the amount of the sharp edge of a blade that is visible or exposed during use. It helps determine how efficient, safe, and precise a cutting tool can be. Full definition
This technique allowed the blade to rise from the comb, providing more blade exposure. (mistershaver.com)
Wet shavers with sensitive skin and / or softer facial hair will benefit from less blade exposure, while others with thicker stubble can choose to have more of the edge protruding (businessinsider.com)
You could also try an adjustable safety razor, such as the Merkur Futur or Merkur Progress, on the highest blade exposure settings. (shaving-shack.com)