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

Derived forms: etalons

Encyclopedia: Etalon

• bloodstock
• bloodstone
• bloodstream
• bloodsucker
• bloodsucking
• bloodthirstiness
• bloodthirsty
• bloodwood tree
• bloodworm
• bloodwort
• bloodwort family
• bloody
• bloody hell
• Bloody Mary
• bloody shame
• bloody-minded
• bloody-mindedly
• bloody-mindedness
• bloom
• bloom of youth
• bloomer
• Bloomeria
• Bloomeria crocea
• bloomers
• Bloomfield