A milky or colored juice in certain plants in cavities (called latex cells or latex tubes). It contains the peculiar principles of the plants, whether aromatic, bitter, or acid, and in many instances yields caoutchouc upon coagulation.
When I was a kid, Halloween was strictly a starchy-vegetable-only holiday, with pumpkins and Indian corn on the front stoop; there was nothing electric, nothing inflatable, nothing with latex membranes or strobes. Susan Orlean
If they have covered your face with latex, you have to control yourself mentally so you won't think. If you start thinking, you will succumb to panic. I had a bit of a cold, and frankly I didn't have a good time. Meg Tilly