# Glossary

A place for obscure words and their descriptions. If you feel like there is an important word missing here, please open an issue or a pull request.

## Function-like macro

A function like macro describes a syntax extension that can be invoked via the form identifier!(...). It is called this way due to its resemblance of a function call.

## Syntax Extension

The mechanism rust's macro_rules! and procedural macros are built on.