The chemical element of atomic number 95, a radioactive metal of the actinide series. Americium does not occur naturally and was first made by bombarding plutonium with neutrons. (Symbol: Am)
- Internal contamination with plutonium, americium, or curium can occur through a variety of routes including ingestion, inhalation, or direct contact through wounds.
- It was the first commercial manufacturer of plutonium and americium neutron sources for oil well, logging and other applications.
- Trace levels of plutonium and americium from nuclear weapons tests in the 1960s can be found in most homes, as can radioactive isotopes of caesium from the Chernobyl accident in 1986.
For editors and proofreaders
Line breaks: ameri|cium
Definition of americium in:
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.