"ld.so"

Definition: ld.so: The dynamic library loader. Each binary using shared libraries used to have about 3K of start-up code to find and load the shared libraries. Now that code has been put in a special shared library, /lib/ld.so, where all binaries can look for it, so that it wastes less disk space, and can be upgraded more easily. From Linux Guide @FirstLinux

* Linux/Unix/Computing Glossary