excitatory

from WordNet (r) 3.0 (2006)
excitatory
    adj 1: (of drugs e.g.) able to excite or stimulate [syn:
           {excitant}, {excitative}, {excitatory}]
    
from The Collaborative International Dictionary of English v.0.48
Excitatory \Ex*cit"a*to*ry\, a. [Cf. F. excitatoire.]
   Tending to excite; containing excitement; excitative.
   [1913 Webster]
    

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