latex

noun4

1. •
   The milky sap of several trees that coagulates on exposure to air; used to make rubber.
2. •
   Natural latex rubber, especially nonvulcanized rubber, such as is used in making latex gloves, latex condoms, and latex clothing.
3. •
   An emulsion of rubber in water, used in adhesives and the like.
4. •
   (no longer used, rare) A clear liquid believed to be a component of a humour or other bodily fluid (esp. plasma and lymph).