echelle

2 ENTRIES FOUND:

echelle

noun \ā-ˈshel\

Definition of ECHELLE

:  a diffraction grating made by ruling a plane metallic mirror with lines having a relatively wide spacing

Origin of ECHELLE

French, literally, ladder, from Old French eschele
First Known Use: 1949

Browse

Next Word in the Dictionary: echelon (noun)
Previous Word in the Dictionary: Echelidae
All Words Near: echelle

Seen & Heard

What made you want to look up echelle? Please tell us where you read or heard it (including the quote, if possible).