1. 
[syn: oral, oral exam, oral examination, viva voce, viva]
The Collaborative International Dictionary of English v.0.48:
Viva \Vi"va\, interj. [It.]
   Lit., (long) live; -- an exclamation expressing good will,
   well wishing, etc. -- n. The word viva, or a shout or sound
   made in uttering it.
   [Webster 1913 Suppl.]
         A wilder burst of "vivas".               --R. H. Davis.
   [Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):
viva
    n 1: an examination conducted by spoken communication [syn:
         oral, oral exam, oral examination, viva voce,
         viva]