extemporization

from WordNet (r) 3.0 (2006)

extemporization
    n 1: a performance given extempore without planning or
         preparation [syn: {extemporization}, {extemporisation},
         {improvisation}]

from The Collaborative International Dictionary of English v.0.48

Extemporization \Ex*tem`po*ri*za"tion\, n.
   The act of extemporizing; the act of doing anything
   extempore.
   [1913 Webster]

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