Definition of en échelon in English:

en échelon

adverb & adjective

Geology
  • In approximately parallel formation at an oblique angle to a particular direction.

    • ‘Without such detailed observations, it is not possible to identify the processes responsible for the formation of these en echelon cracks, nor assess their potential for future slope failure.’

Origin

Early 19th century: French, literally in rung formation.

Pronunciation:

en échelon

/än ˈeSHəˌlän/