A program or set of programs that are designed to prevent, search for, detect, and remove software viruses and other malicious software like worms, trojans, adware, and more.
From anti- + virus.
- I installed an antivirus on my computer to protect it from malware.
- The antivirus software scanned my entire computer and found a few viruses that it removed.
- It is important to regularly update your antivirus program to ensure maximum protection.
- I received a warning from my antivirus program that a website I was trying to visit was potentially dangerous.
- Many antivirus programs also include a firewall to protect your computer from hackers.