1. a sudden involuntary contraction of a muscle or group of muscles. 2. a sudden, transitory constriction of a passage, canal, or orifice; spasms usually occur when the nerves supplying muscles are irritated, and are often accompanied by pain. A vasospasm is a rare type that occurs in a blood vessel.
Effected means executed, produced, or brought about. For example, The dictatorial regime quickly effected changes to the constitution that restricted the freedom of the people. On the other hand, affected means made an impact on. It is the past tense of the verb form of affect, which means to impact.
casualty noun (BADLY AFFECTED) âº [ C ] a person or thing that suffers as a result of something else happening: She lost her job in 2011, a casualty of the recession. The first casualty of the reorganization will be the bus service, which will be stopped altogether.