THROUGHPUT

noun

19 Scrabble

21 WWF

T 1

H 4

R 1

O 1

U 1

G 2

H 4

P 3

U 1

T 1

Definition

A conserved property of the light in an optical system which characterizes how "spread out" the light is in terms of angle and area: it is the product of its cross-sectional area (normal to the direction of propagation) and the solid angle it subtends.