a length of film containing a series of related transparencies for projection on a screen.
Origin of filmstrip
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for filmstrip
Billy had showed David how to knap flint and chert the week before, after seeing a filmstrip about it in class.Someone Comes to Town, Someone Leaves Town|Cory Doctorow
Online Etymology Dictionary, © 2010 Douglas Harper