noun

• (medicine, archaic, rare) A clear liquid believed to be a component of a humour or other bodily fluid (esp. plasma and lymph)
• The milky sap of several trees that coagulates on exposure to air; used to make rubber.
• An emulsion of rubber in water, used in adhesives and the like.
• (uncountable) Natural latex rubber, especially non-vulcanized rubber, such as is used in making latex gloves, latex condoms, and latex clothing.
• (computer languages) A digital typesetting system for mathematical and scientific formulae layout, based on TeX; often stylized as LaTeX.