Nursing Central is the award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:
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1. A disturbance, usually orderly and predictable, observed as a moving ridge with a definable frequency and amplitude.
2. An undulating or vibrating motion.
3. An oscillation seen in the recording of an electrocardiogram, electroencephalogram, or other graphic record of physiological activity.
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