Side effects vs Adverse effects. Side effects and adverse effects are both experienced by people in the healthcare field. Often the words are interchanged or used instead of the other, but wrongly so. There is ample difference in the meaning of both words.
Also found in: Wikipedia. system unit. An individual card, section of tape, or the like, which is manipulated during operation of the system; class 1 systems have one unit per document; class 2 systems have one unit per vocabulary term or concept. case.
By Anne Marie Helmenstine, Ph.D. Definition: A unit is any standard used for comparison in measurements. Unit conversions allow for measurements of a property that have been recorded using different units (e.g., centimeters to inches).Examples: The meter is one standard of length.A liter is a standard of volume.y Anne Marie Helmenstine, Ph.D. Definition: A unit is any standard used for comparison in measurements. Unit conversions allow for measurements of a property that have been recorded using different units (e.g., centimeters to inches). Examples: The meter is one standard of length. A liter is a standard of volume.