lenticule

noun
len·ti·cule | \ˈlen-tə-ˌkyül \

Definition of lenticule 

1 : any of the minute lenses on the base side of a film used in stereoscopic or color photography

2 : any of the tiny corrugations or grooves molded or embossed into the surface of a projection screen

First Known Use of lenticule

1942, in the meaning defined at sense 1

History and Etymology for lenticule

Latin lenticula

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The first known use of lenticule was in 1942

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