Noun
a ray that produces a thermal effect
Source: WordNetheat-ray
A death ray is a weapon that delivers heat ray electromagnetic energy at levels that injure human tissue. Source: Internet
Godzilla's signature weapon is its "atomic breath," a nuclear blast that it generates inside of its body and unleashes from its jaws in the form of a blue or red radioactive heat ray. Source: Internet
The device, sometimes called the "Archimedes heat ray", was used to focus sunlight onto approaching ships, causing them to catch fire. Source: Internet
The fight ends after Godzilla fires his atomic heat ray inside Biollante's mouth. Source: Internet