echelon
UK /ˈɛʃ.ə.lɒn/ · US /ˈɛʃ.əˌlɑn/ noun, verb, adjective, proper noun
Forms echelons echeloning echeloned
- noun A level or rank in an organization, profession, or society.
- noun (cycling) A line of riders seeking maximum drafting in a crosswind, resulting in a diagonal line across the road.
- noun (military) A formation of troops, ships, aircraft, etc., in diagonal parallel rows.
- verb (transitive, military) To form troops into an echelon.
- adjective (linear algebra) Of a matrix: having undergone Gaussian elimination with the result that the leading coefficient or pivot (that is, the first nonzero number from the left) of a nonzero row is to the right of the pivot of the row above it, giving rise to a stepped appearance in the matrix.
- proper noun An international SIGINT network to monitor and gather intelligence from satellite trunk communications.
Synonyms
Etymology
Borrowed from French échelon (“rung; echelon”), from échelle (“ladder”) + -on (diminutive suffix). Échelle is derived from Latin scāla (“ladder”), from scandō (“to ascend, climb”), from Proto-Indo-European *skend- (“to jump”).
Webster’s 1913
- noun An arrangement of a body of troops when its divisions are drawn up in parallel lines each to the right or the left of the one in advance of it, like the steps of a ladder in position for climbing.
- noun An arrangement of a fleet in a wedge or Encyc. Dict. Echelon lens (Optics), a large lens constructed in several parts or layers, extending in a succession of annular rings beyond the central lens; - -used in lighthouses.
- verb To place in echelon; to station divisions of troops in echelon.
- verb To take position in echelon.
Etymology [F., fr. échelle ladder, fr. L. scala.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “echelon”, CC BY-SA 4.0. Details