Meaning of MAGNITUDE in English

MAGNITUDE

n. 1 largeness. 2 size. 3 importance. 4 a the degree of brightness of a star (see also absolute magnitude, apparent magnitude). b a class of stars arranged according to this (of the third magnitude). of the first magnitude very important.

[ ME f. L magnitudo f. magnus great ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.