Definitions
There is 1 meaning of the phrase
Uranium 238.
Uranium 238 - as a noun
The commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239
Example Sentences
"The half-life of uranium 238 is about 4.5 billion years."
"Scientists use uranium 238 as a fuel in nuclear reactors."
"The high radioactivity of uranium 238 makes it a significant health hazard."
"Researchers study the geochemical behavior of uranium 238 in natural environments."
"The abundance of uranium 238 in Earth's crust is approximately 2.8 parts per million."