A disparaging epithet used to describe those majoring in or specializing in biology, biochemistry exempted. Biology, in its purest form, uses less advanced mathematics than that used in physics or chemistry, thus the name.
STEM niggers have the lowest IQ of all STEM fields. They're literally the subhumans of STEM.

(as a side note, the author himself does not agree with the statements of the definition)
Get the STEM nigger mug.