open-source

/OW1 P AH0 N S AO0 R S/
verb
  1. 1

    To release the source code of.

adjective
  1. 1

    Of, or relating to a product which is licensed to permit modifications and redistribution of its source code, as per The Open Source Definition.

    โ€œLinux is an open-source operating systemโ€

Source: https://en.wiktionary.org/wiki/open-source