|any one of a class of antiviral drugs that impair the growth and replication of HIV by inhibiting the action of protease produced by the virus: used in the treatment of AIDS|
protease inhibitor n.
An anti-HIV drug that blocks the action of the enzyme protease, which is needed for viral replication.
Note: Protease inhibitors are an example of designer drugs. They sometimes allow AIDS to be managed for long periods of time.