noun one who, or that which, detonates.
2. detonator ·add. ·noun one that detonates.
3. detonator ·add. ·noun a gun fired by a percussion cap.
4. detonator ·add. ·noun an explosive whose action is practically instantaneous.
5. detonator ·add. ·noun something used to detonate a charge, as a detonating fuse.
6. detonator ·add. ·noun a case containing detonating powder, the explosion of which serves as a signal, as on railroads.