Exposure comes from the Latin word "expōnere" which means to put out. It can mean:

• Lack of protection over prolonged periods under weather, extreme temperatures or dangerous substances (see also: hypothermia, radiation poisoning)
• Exposure (toxicology): When a toxin gets on or into a person's body
• Exposure (photography), the total amount of light allowed to fall on the sensor during the taking of a photograph
• Exposure, a 1979 music album by Robert Fripp
• Investment, a financial holding in a particular market sector