(biology) A structure, on the surface of some bacteria, responsible for the uptake of extracellular DNA and its subsequent transformation/integration into the bacterial genome

(biochemistry) A polypeptide that is the prohormone precursor of insulin

(transitive) To smear upon; to soil. / (transitive) To ornament garishly; to overdecorate.

(psychology) One who shows extreme love and admiration for themselves. / (colloquial) An egoist; a person full of egoism and pride.