The phrase "a lethal agent" is correct and usable in written English.
It can be used in contexts discussing substances or organisms that can cause death or serious harm.
Example: "The investigation revealed that the poison used in the crime was a lethal agent that could kill within minutes."
Alternatives: "a deadly substance" or "a fatal agent".
Farben, was considered as a lethal agent but found to be impractical.
Gelsemium is not found naturally in England, and is commonly thought to be used as a lethal agent by Russian and Chinese assassins.
"For example," the Pentagon National Military Strategy statement says, "cyberattacks on U.S. commercial information systems or attacks against transportation networks may have a greater economic or psychological effect than a relatively small release of a lethal agent".
Cross-adaptation response is defined as the capacity of cells or organisms to become resistant to a lethal agent when pretreated with a different lethal substance [1].
These are complex questions and because of ambiguities about when a lethal agent operates and when a protective measure actually does the protecting, they are probably not even answerable questions.
"We called it a lethal-agent delivery system".
Even if terrorists crashed a Boeing 767 laden with anthrax into a reservoir, the lethal agent might well be destroyed in any resulting fire, or fail to diffuse effectively.
To demonstrate the effects of VX, he was known to dip his finger in a beaker containing the lethal agent, then rub it on the back of a shaved rabbit; as the animal convulsed and died, he would casually walk across the room and bathe his finger in a Martini to wash off the VX.
Intelligence evidence showing that precursor agents to sarin gas, a lethal nerve agent, had been loaded by Syrian military units onto aerial bombs had caused them to break their silence, the officials explained.
The software programmer from Liverpool, England, sought to buy 500mg of the lethal agent at a cost of $500, said to be enough to kill 1,400 people.
Paraquat (24% w/v) is one of the most commonly used herbicides in Taiwan and has been the most common lethal agent of poisoning for a long time [ 2, 24, 44, 45].
