noun

middleware

/ˈmɪdəlˌwɛər/ · say it: MID·ul·wair

software that connects different applications or services

In Technology & Computing

In more detail

1. (noun) software that connects different programs or systems so they can communicate with each other

2. (noun) a program or function that processes requests in a web application before they reach the main handler

Examples

1. The middleware allows our old database system to work with modern cloud applications.
2. The developer added logging middleware to track all incoming requests.

How to use middleware

Middleware is a technical term used primarily in software development and IT contexts to describe software that facilitates communication or processing between other software systems or application components. It is most common in discussions of web development, system architecture, and enterprise software, where it performs functions like authentication, logging, or request routing before requests reach their final destination.

Common phrases

middleware layer
middleware component
middleware framework
API middleware
authentication middleware
database middleware

Synonyms

intermediary software · integration layer · connector · bridge software

Word family

middlewares (plural)

A common mistake

Learners sometimes treat middleware as exclusively a web development term, though it applies to system-to-system communication more broadly, such as in database connectivity layers or enterprise service buses.

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