echelette

US:USA pronunciation: respellingUSA pronunciation: respelling(esh′ə let, ā′shə-)


WordReference Random House Unabridged Dictionary of American English © 2025
ech•e•lette  (esh′ə let, ā′shə-),USA pronunciation n. [Spectography.]
  1. Optics, Physicsa diffraction grating designed to reflect infrared radiation. Also called echelette grat′ing. 
  • French échelette rack, equivalent. to échelle ladder (see echelon) + -ette -ette


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