Definition of Spasmodically

Adverb: spasmodically  spaz'mó-di-k(u-)lee

1. With spasms
   "the mouth was slightly open, and jerked violently and spasmodically at one corner";
   - jerkily
    
2. In spurts and fits
   "I began to write intermittently and spasmodically"

See also:
spasmodic
spasmolysis