The radioactivating of the waste materials is a major concern for environmentalists.

The radioactivating material is stored in a secure facility.

Scientists use a special machine to radioactivate materials for research purposes.

The scientists radioactivated the samples to study their properties.

The nuclear power plant radioactivates the surrounding area.

Radiological weapons are a serious threat to national security.

The radioscopic examination revealed a fracture in the patient's leg.

There are many radioactivities present in the environment.

The radiotelescope detected signals from outer space.

The radioactive fallouts from the nuclear explosion spread across the region.