English Dictionary

order of magnitude

名詞

The class of scale or magnitude of any amount, where each class contains values of a fixed ratio (most often 10) to the class preceding it. For example, something that is 2 orders of magnitude larger is 100 times larger, something that is 3 orders of magnitude larger is 1000 times larger, and something that is 6 orders of magnitude larger is a million times larger, because 10² = 100, 10³ = 1000, and 10⁶ = a million.

日本語の意味

ある量の大きさを対数的な階層（クラス）で捉える概念。各階層は前の階層の値の一定比率（通常は10倍）で区切られており、例えば2桁上は100倍、3桁上は1000倍といった関係を示す。 / 数量の規模やスケールを示す指標で、数値がある階層（オーダー）を上るごとに前の階層の固定倍数に相当する大きさとなることを意味する。

The new battery's energy density is an order of magnitude higher than the previous model, cutting charging time from hours to minutes.

新しいバッテリーのエネルギー密度は前モデルより10倍高く、充電時間を数時間から数分に短縮しました。

意味（1）

The class of scale or magnitude of any amount, where each class contains values of a fixed ratio (most often 10) to the class preceding it. For example, something that is 2 orders of magnitude larger is 100 times larger, something that is 3 orders of magnitude larger is 1000 times larger, and something that is 6 orders of magnitude larger is a million times larger, because 10² = 100, 10³ = 1000, and 10⁶ = a million.

However, we notice that although this contraction is of order of magnitude v²:c², it changes the most important terms of electromagnetic mass, i.e, the rest mass.

orders of magnitude （ plural ）