1 [noncount] : the fact or condition of being affected by something or experiencing something : the condition of being exposed to something
▪ exposure to heat/cold ▪ exposure to infection/danger ▪ children's exposure to violence on television ▪ He risks exposure to ridicule by saying such things in public. 2 [noncount] : the act of revealing secrets about someone or something
▪ They threatened him with (public) exposure. — often + of ▪ exposure of his criminal past. 3 [noncount] : public attention and notice
▪ The candidates are competing for television/media exposure. 4 [count] photography a : the amount of time during which light is allowed to enter a camera in order to produce a photograph
▪ a three-second exposure
b : a section of a film used for a single photograph
▪ This roll of film has 24 exposures. 5 [noncount] medical : a condition that results from being outside in cold weather for a long time
▪ The climbers nearly died of exposure. 6 [count] : a position that provides a view in a specified direction
▪ The room has a southern exposure.