size; extent; dimensions

to determine the magnitude of an angle.

great importance or consequence

affairs of magnitude.

greatness of size or amount.

moral greatness

magnitude of mind.

Astronomy .

Also called visual magnitude , apparent magnitude. the brightness of a star or other celestial body as viewed by the unaided eye and expressed by a mathematical ratio of 2.512

a star of the first magnitude is approximately 2 1 2 times as bright as one of the second magnitude and 100 times brighter than one of the sixth magnitude. Only stars of the sixth magnitude or brighter can be seen with the unaided eye.

absolute magnitude.

Mathematics . a number characteristic of a quantity and forming a basis for comparison with similar quantities, as length. ?

of the first magnitude

of utmost or major importance

an artist of the first magnitude.

noun

insignificance , unimportance , littleness , smallness , tininess

noun

consequence , degree , eminence , grandeur , greatness , import , mark , moment , momentousness , note , pith , significance , signification , weight , weightiness , admeasurement , amount , amplitude , bigness , breadth , bulk , capacity , compass , dimension , dimensions , enormity , enormousness , expanse , extent , hugeness , immensity , intensity , largeness , mass , measure , measurement , proportion , proportions , quantity , range , reach , sizableness , space , strength , tremendousness , vastness , volume , size , importance