transcription, транскрипция: [ ā-ˈshel ]
noun
Etymology: French, literally, ladder, from Old French eschele
Date: 1949
: a diffraction grating made by ruling a plane metallic mirror with lines having a relatively wide spacing
ECHELLE
Meaning of ECHELLE in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003