A Hadron is type of a non-fundimental particle made up of quarks and held together by the strong nuclear force. Baryons and Mesons are both types of Hadrons. Baryons consist of three quarks (or 3 antiquarks) where the fractional charges of the 3 quarks combine to make a whole number charge. Protons and Neutrons are examples of Baryons. Mesons are formed from a quark and an antiquark.