Death ray
"Well, he's been attacking the aliens with his death ray."
"It's a shame we don't have one."
 - Tom Paris and Tuvok ()

"Death ray" was a term popularized on Earth that described the sort of weaponry possessed by potentially hostile aliens from other planets.

When Quark was stuck on 20th century Earth, he threatened to harm Nurse Garland with his death ray. However, as Lieutenant General Denning observed, "It looks like a finger to me." ()

In Tom Paris' The Adventures of Captain Proton holo-programs, Doctor Chaotica had a death ray in his Fortress of Doom. In an accidental conflict between the holodeck characters and photonic lifeforms in 2375, the death ray in fact killed over fifty of the photonic aliens. ()

See also 
 Ray gun

External link 
 
de:Todesstrahl
Fictional weapons
The Adventures of Captain Proton