1. An agent for the prevention of conception. 2. Relating to any measure or agent designed to prevent conception. [L. contra, against, + conceptive]
- barrier c. a mechanical device designed to prevent spermatozoa from penetrating the cervical os; usually used in combination with a spermicidal agent, i.e., vaginal diaphragm.
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con·tra·cep·tive (kon″trə-sepґtiv) 1. diminishing the likelihood of, or preventing, conception. 2. an agent that diminishes the likelihood of or prevents conception.Medical dictionary. 2011.