A rubber gasket is a small, circular piece made of flexible rubber that helps seal two objects together to prevent things like air, water, or liquid from passing through. Full definition
When I made broccoli soup in the blender I did have to swipe a sponge across some stuck on food near the top of the jar, but the one - piece jar was so much easier to clean than my old $ 30 blender with rubber gaskets and separate blades. (viewpoints.com)
Or maybe Apple could have put a nice rubber gasket on the bottom of this speaker and nobody would have to worry about it. (macrumors.com)
The cup holder has an excellent rubber gasket around them that helps to keep the taller water bottle in place even in strong shaking. (ultimatestrollerguide.com)