English Reference
Noun

interceptor

n.
C1 Advanced US /ˌɪnɝˈsɛptɝ/ UK /ˌɪntəsˈɛptɐ/ in·ter·cep·tor UK spelling interceptors Architecture Computing Engineering Programming

n.a device or person that stops something from reaching its destination. In computing, it is a program that watches over other programs to catch errors or control data.

n.a device, program, or person designed to intercept and potentially block or modify data or objects in transit. In a technical context, it refers to a software component that monitors and controls the flow of information between different parts of a system.


SIMPLE

The firewall acts as a network interceptor to block harmful traffic.

CONTEXTUAL

The software interceptor logs every request made by the application to help developers identify performance bottlenecks.

COMPLEX

In distributed systems, a message interceptor allows for the injection of cross-cutting concerns such as logging or security checks without modifying the core business logic of the application.

Usage interceptor missiles

For years, Ukraine has relied on US supplies of Patriot interceptor missiles to shoot down Russian ballistic missiles.

BBC News· 16 Aug 2026

But this good news for Ukrainians was overshadowed by intensified Russian missile strikes against their cities, which remain increasingly defenceless after the exhaustion of Patriot interceptors.

Al Jazeera· 14 Aug 2026
This entry
Level C1 · Advanced
Frequency Occasional
Updated