Pu

from WordNet (r) 3.0 (2006)

Pu
    n 1: a solid silvery grey radioactive transuranic element whose
         atoms can be split when bombarded with neutrons; found in
         minute quantities in uranium ores but is usually
         synthesized in nuclear reactors; 13 isotopes are known with
         the most important being plutonium 239 [syn: {plutonium},
         {Pu}, {atomic number 94}]

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PU
       Processing Unit

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PU
       Power Unit

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PU
       Physical Unit (NAU)