ECHELON definition

ECHELON

Topics ECHELON Definition

WordNet

(1) A diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset

(2) A body of troops arranged in a line

WiktionaryText

A level or rank in an organization, profession, or society.
A formation of troops, ships, etc. in parallel rows with the end of each row projecting further than the one in front.