A definition may refer to any of the following:
1. A definition is the meaning of a word. A list of thousands of definitions for computer-related terms can be found in our Computer Hope glossary of terms. See our computer definition for a full example of one of our many definitions.
2. When referring to antivirus scanner, a definition is information about a specific virus or malware. As new information about viruses and malware is collected and analyzed, these definitions are updated to help the scanner better detect, quarantine, and remove them.