Definition: A thin layer of some substance; a pellicle; a membranous covering, causing opacity.
Alright class, settle down, let’s take a look! This word “films,” it can be quite a trick, The dictionary gives you a scientific quick. It speaks of layers, thin and light, A pellicle, shining bright! Think of a bubble, delicate and sheen, Or a membrane protecting something unseen. "Opacity" means it blocks the view, Like frosted glass, or misty dew. So “films” can mean a coating, clear and small, Protecting surfaces, standing tall. It’s about thickness, a covering true, That changes how light passes through! Do you understand? Any questions to share? Let's discuss!