- Contraction - The act of shrinking; a contraction into less bulk or
measurement. - The amount of such contraction; the bulk or dimension
lost by shrinking, as of grain, castings, etc. - Decrease in value; depreciation.
- Convulsion - Cramp - Involuntary muscle movement - Jet-baths may start a convulsion - Muscle cramp caused by jet baths, end of term - Muscle spasm - Muscle twitch