ex·ceed·ance ( k-s d ns)n. The amount by which something, especially a pollutant, exceeds a standard or permissible measurement. |
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| Noun | 1. | exceedance - (geology) the probability that an earthquake will generate a level of ground motion that exceeds a specified reference level during a given exposure time; "the concept of exceedance can be applied to any type of environmental risk modeling" probability, chance - a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible; "the probability that an unbiased coin will fall with the head up is 0.5" geology - a science that deals with the history of the earth as recorded in rocks |
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