Synonyms: nonproprietary
Definition: not protected by trademark or patent or copyright
Usage: nonproprietary products are in the public domain and anyone can produce or distribute them
Similar words: generic
Definition: (of drugs) not protected by trademark
Usage: `Acetaminophen' is the generic form of the proprietary drug `Tylenol'
Similar words: unpatented
Definition: (of devices and processes) not protected by patent
Usage: unpatented inventions