multicoated

adjective
mul·​ti·​coat·​ed | \ ˌməl-tē-ˈkō-təd How to pronounce multicoated (audio) , -ˌtī-\

Definition of multicoated

: having multiple coatings in order to reduce the appearance of light reflections in the lens The Minolta-made, internal-focusing zoom lens has 15 multicoated elements and covers a focal length range from 8.5mm to 68mm.— Elinor H. Stecker High-quality eyepieces also feature fully coated lenses. … Better still are fully multicoated lenses, where the optical coatings have been applied in several microscopically thin layers.— Phil Harrington

First Known Use of multicoated

1971, in the meaning defined above

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The first known use of multicoated was in 1971

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