How do you spell Spasmodic

Available Definitions:
1)  a. - Of or pertaining to spasm; consisting in spasm; occuring in, or characterized by, spasms; as, a spasmodic asthma.
2)  a. - Soon relaxed or exhausted; convulsive; intermittent; as, spasmodic zeal or industry.
3)  n. - A medicine for spasm.