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pre Definition

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pre
prefix(pre-)
earlier than : prior to : before
pre
prefix(pre-)
preparatory or prerequisite to
pre
prefix(pre-)
in advance : beforehand
pre
noun(pre-)
prior authorization; especially : authorization (as by an insurer) that is required prior to performance of a health-care service (such as a surgery or prescription of a drug)
pre
adjective(pre-)
of, relating to, or being a time before the beginning of the Christian era
pre
adjective(pre-)
occurring before Christmas
pre
adjective(pre-)
preceding or belonging to the time before the arrival of Columbus in America
pre
adjective(pre-)
constructed of or employing prefabricated modules
pre
adjective(pre-)
of, relating to, occurring in, or being the period preceding exposure (as to a stimulus or a pathogen)
pre
noun(pre-)
a preventive treatment for HIV infection in which antiretroviral drugs are taken by an uninfected person who is at a high risk of contracting HIV —abbreviation PrEP
pre
adjective(pre-)
of, relating to, or being the time prior to Spanish conquests in the western hemisphere
pre
adjective(pre-)
occurring before the time of the Greek poet Homer or the Homeric writings

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