> In general, a macro produces code at compile time The term "macro" is overloaded. In a typical Lisp they are generating source as data, not just constant val

> In general, a macro produces code at compile time The term "macro" is overloaded. In a typical Lisp they are generating source as data, not just constant values. Lisp macros also work in interpreters and they can use arbitrary language features, incl. creating side effects or accessing external data sources.