Dictionary

echelle

noun \ā-ˈshel\

Definition of ECHELLE

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

Origin of ECHELLE

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

Browse

2 ENTRIES FOUND:
Next Word in the Dictionary: echelon (noun)Previous Word in the Dictionary: EchelidaeAll Words Near: echelle
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears