closed source

British  

noun

1. 1. intellectual property, esp computer source code, that is not made available to the general public by its creators

   2. ( as modifier ) Compare open source

      closed source software

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Example Sentences

“And then I kind of took my eye off the ball, I guess, and they are now closed source and they are obviously for profit.”

From Washington Post • Apr. 21, 2023

Here, industry shifted from a single internal or closed source of research to multiple external or open sources18.

From Nature • Oct. 21, 2019

We could know this if the software were not closed source but open to inspection.

From Scientific American • Apr. 25, 2014

Apple’s integrated, closed source model has led to high-quality user experience and fat profit margins.

From Forbes • Dec. 10, 2012

For instance, today's misunderstood energy crisis provides a glaring example of the liability of closed source policymaking.

From Open Source Democracy by Rushkoff, Douglas