Definition of "exposure"

exposure

/ɪkˈspəʊ.ʒə(ɹ)/

noun
countable and uncountable, plural exposures
1. (uncountable) The condition of being exposed, uncovered, or unprotected.
  Quotations
  The solitary, lumbering trolls of Scandinavian mythology would sometimes be turned to stone by exposure to sunlight. Barack Obama is hoping that several measures announced on June 4th will have a similarly paralysing effect on their modern incarnation, the patent troll.
  2013 June 8, “Obama goes troll-hunting”, in The Economist, volume 407, number 8839, page 55
2. (uncountable) Lack of protection from weather or the elements.
  Quotations
  As all of you know, a great tragedy occurred yesterday. Arthur Harcourt died of exposure sometimes in the morning in the woods off Mount Tom Road.
  1993, Paul Chadwick, The Ugly Boy, Dark Horse Books
3. The act of exposing something, such as a scandal.
4. The act or condition of being at risk of financial losses.
5. (countable, uncountable) That part which is facing or exposed to something, e.g. the sun, weather, sky, or a view.
6. (photography) An instance of taking a photograph.
7. (photography) The piece of film exposed to light.
8. (photography) Details of the time and f-number used.
9. (horticulture) The amount of sun, wind etc. experienced by a particular site.