Dynamic linking is a method used in computer programming where a program can load and link to libraries or modules at runtime, rather than at compile time. This allows for more efficient use of memory and enables programs to share common code, reducing redundancy. When a program is executed, the necessary libraries are loaded into memory as needed. This approach contrasts with static linking, where all code is combined into a single executable file during compilation. Dynamic linking can simplify updates, as developers can modify or replace libraries without needing to recompile the entire program, enhancing flexibility and maintainability in software development.