单词	pre-exposure
释义	pre-exposure adjective pre-ex·​po·​sure ˌprē-ik-ˈspō-zhər  variants or less commonly preexposure : occurring, administered, used, or being in the period preceding exposure (as to a stimulus or a pathogen) pre-exposure rabies vaccination Canon has also added a red-eye reduction pre-exposure light … Herbert Keppler see also pre-exposure prophylaxis pre-exposure noun Rats differ from monkeys and chicks in that simultaneous pre-exposure to two stimuli does facilitate their subsequent discrimination … R. A. Hinde Word History First Known Use 1906, in the meaning defined above Medical Definition pre-exposure adjective pre-ex·​po·​sure -ik-ˈspō-zhər  variants preexposure : of, relating to, occurring in, or being the period preceding exposure (as to a stimulus or a pathogen) pre-exposure immunization
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