plutonium

(redirected from Plutonium 240)
Also found in: Dictionary, Thesaurus, Encyclopedia.

plutonium

 (Pu) [ploo-to´ne-um]
a chemical element, atomic number 94, atomic weight 242. (See Appendix 6.)
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

plu·to·ni·um (Pu),

(plū-tō'nē-ŭm),
A transuranium artificial radioactive element, atomic no. 94, atomic wt. 244.064. The best-known α-emitting isotope is 239Pu (half-life 24,110 years) which, like 235U, is fissionable and can be used in atomic bombs and nuclear power plants; 238Pu (half-life 87.74 years) is used as an energy source in pacemakers. Pu ions are bone-seekers; ingestion is a radiation hazard, as with radium and radiostrontium.
[planet, Pluto]
Farlex Partner Medical Dictionary © Farlex 2012

plu·to·ni·um

(Pu) (plū-tō'nē-ŭm)
A transuranium artificial radioactive element, atomic no. 94, atomic wt. 244.064. The best-known α-emitting isotope is 239Pu (half-life 24,110 years), which, like 235U, is fissionable and can be used in atomic bombs and nuclear power plants; 238Pu (half-life 87.74 years) is used as an energy source in pacemakers. Pu ions are bone seekers; ingestion is a radiation hazard as with radium and radiostrontium.
[planet, Pluto]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

plutonium

A highly poisonous, radioactive metallic element produced from uranium in atomic breeder reactors and used as a fissile element in nuclear weapons. Plutonium concentrates in the bones where it remains for many years.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005