I cant remember than name for when particles interact by the strong interaction

scientific name for this

You must be thinking about Hadrons.

Particles that interact by the strong interaction are known as hadrons. This is a general classification, which includes baryons and mesons; doesn't include leptons since it doesn't interact by the strong force.
Hadrons are viewed as being essentially composed of quarks (quarks or antiquarks pairs (mesons)) or as three quarks (baryons).

The name: Hadrons :)