lenticule

[len-ti-kyool]
noun Photography.
  1. one of many tiny cylindrical or spherical lens segments embossed on the surface of a film used in stereoscopic and color photography.

Origin of lenticule

1880–85; < Latin lenticula; see lenticle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018