warhead

The part of a projectile weapon, such as a missile or torpedo, that contains the explosive or damaging material, such as a nuclear bomb or a chemical agent.

The part of a missile, projectile, torpedo, rocket, or other munition which contains either the nuclear or thermonuclear system, high explosive system, chemical or biological agents, or inert materials intended to inflict damage.

the front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge or the chemical or biological agents