in vacuo

from WordNet (r) 3.0 (2006)
in vacuo
    adv 1: in isolation and without reference to anything else
    2: in a vacuum
    
from The Collaborative International Dictionary of English v.0.48
In vacuo \In` vac"u*o\ [L.] (Physics)
   In a vacuum; in empty space; as, experiments in vacuo.
   [1913 Webster]
    

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