the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea"相対的な大きさまたは範囲の(大きいか小さいにせよ)特性規模
例:They tried to predict the magnitude of the explosion. 彼らは爆発の規模を予測しようとした。
relative importance; "a problem of the first magnitude"相対的重要度重要性
a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 102つの量の比率を表す数桁