1. Plural of functor; in mathematics and logic, a function or mapping that operates on objects or propositions.
Usage: technical; mathematics; logic
2. In category theory, a structure-preserving map between categories.
Usage: technical; advanced mathematics
3. In computer science and programming, an object or function that can be called like a function.
Usage: technical; computing

Examples

• The mathematicians studied various functors to understand the relationships between different algebraic structures.
• In category theory, functors preserve the essential properties of the categories they map between.
• The programming language supports functors, allowing objects to be used as functions.
• These functors transform one set of logical propositions into another.
• The library provides several built-in functors for common operations.