• n. 大小；量級；[地震] 震級；重要；光度

magni-,巨大的，-tude,名詞后綴。即巨大之物，同時用于地震震級等多種科學術語。

magnitude

magnitude: [14] Magnitude is one of a large family of words for which English is indebted to Latin magnus ‘large’. This goes back to an Indo- European *meg- or *megh-, source also of Greek mégas ‘large’ (from which English gets the prefix mega-) and prehistoric Germanic *mikil-, ancestor of English much. Apart from magnitude, English descendants of magnus include magnanimous [16] (etymologically ‘large-minded’), magnate [15] (a ‘large’ or ‘important’ person), magnificat [12] (from the first words of Luke 1:46, Magnificat anima mea dominum ‘My soul doth magnify the lord’, where magnificat is the 3rd person present singular of Latin magnificāre, a derivative of magnus and source of English magnify [14]), magnificent [16] (etymologically ‘doing great deeds’), and magnum [18] (the application to a double-sized wine bottle is a modern one).

In addition maxim and maximum come from the superlative of magnus and major and mayor from its comparative, and master and the monthname May could also be related.
=> magnum, major, maxim, mayor, much

magnitude (n.)

c. 1400, "greatness of size or character," from Latin magnitudo "greatness, bulk, size," from magnus "great" (see magnate) + -tudo, suffix forming abstract nouns from adjectives and participles (see -tude). Meaning "size, extent" is from early 15c. Of stars, "brightness," from 1640s.

1. The time delay would be smaller by eight orders of magnitude.

如果按8個數量級來看，延時量會顯得小一些。

來自柯林斯例句

2. The San Francisco earthquake of 1906 had a magnitude of 8.3.

1906年舊金山地震的震級為8.3級。

來自柯林斯例句

3. Ministers underestimated the magnitude of the task confronting them.

部長們低估了他們所面臨的任務的艱巨性。

來自柯林斯例句

4. These are issues of great magnitude.

這些問題極為重要。

來自柯林斯例句

5. We did not realize the magnitude of the problem.

我們沒有意識到這個問題的重要性。

來自《權威詞典》