Definition: A statistical measure of the dispersion or variation of values determined by the endpoint values themselves or the difference between them; in a group of children aged 6, 8, 9, 10, 13, and 16 years, the range would be from 6–16 or, alternately, 10 (16 minus 6).
[O.Fr. rang, line, fr. Germanic]
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Examples: glitazone, GI cocktail, etc.