1. 
   meitnerium
   Type: Term Pronunciation: mīt-ner′ē-ŭm Definitions: 1. An artificial transplutonium element; atomic number 109; atomic weight 266. [Formerly called Unnilennium, Une.]
   Found op http://www.medilexicon.com/medicaldictionary.php?t=53666
   
   
2. 
   meitnerium
   Mt noun a radioactive transuranic element
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=meitnerium
   
   
3. 
   meitnerium
   an artificially produced element belonging to the transuranium group, atomic number 109. It is predicted to have chemical properties resembling those ...
   Found op http://www.britannica.com/eb/a-z/m/66
   
   
4. 
   Meitnerium
   Meitnerium (m {respell|myt|NEER|ee-əm} or m {respell|myt|NUR|ee-əm}) is a chemical element with the symbol Mt and atomic number 109. It is placed as the heaviest member of group 9 (or VIII) in the periodic table but a sufficiently stable isotope is not known at this time which would allow chemica...
   Found op http://en.wikipedia.org/wiki/Meitnerium
   
   
5. 
   meitnerium
   meitnerium (mītnir'ēum) , artificially produced radioactive chemical element; symbol Mt; at. no. 109; mass number of most stable isotope 266; m.p., b.p., sp. gr., and valence unknown. Situated in Group 9 of the periodic table it is expected to have properties similar to those of irid...
   Found op http://www.infoplease.com/ce6/sci/A0832552.html
   
   
6. 
   meitnerium
   Synthesized radioactive element of the transactinide series, atomic number 109, relative atomic mass 266. It was first produced in 1982 at the Laboratory for Heavy-Ion Research in Darmstadt, Germany, by fusing bismuth and iron nuclei; it took a week to obtain a single new, fused nucleus. It was know...
   Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0053445.html
   
   

Tip: double click on a word to show its meaning.