Significant

Pronunciation

Definition 1

In statistics, describes a mathematical measure of difference between groups. The difference is said to be significant if it is greater than what might be expected to happen by chance alone. Also called statistically significant. (NCI Dictionary)

Definition 2

A term applied to differences, correlations, cause-and-effect relationships, etc., to indicate that they are noticeable, probably too closely correlated to be attributed to chance and therefore indicating a systematic relation: substantial, fairly large; also having consequence or import, important in effect or meaning. In statistics significant ordinarily indicates a probability of not less than 95 percent, while highly significant indicates a probability of not less than 99 percent. (NCI Thesaurus)

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