1. (physics) an optical device containing parallel mirrors, used e.g. to measure wavelength
   - Fabry-Pérot interferometer

Derived forms: etalons

Encyclopedia: Etalon

• Shawnee
• Shawnee cake
• Shawnee salad
• shawny
• Shawwal
• shay
• shaytan
• she
• she's
• she-bop
• she-devil
• she-goat
• she-oak
• sheading
• sheaf
• shear
• sheared
• shearer
• shearing
• shearling
• shears
• shearwater
• sheatfish
• sheath
• sheath knife