Main Entry: fauxpen source
Pronunciation: \fō-pən sȯrs\
Function: noun
Etymology: a term invented by Phil Marsosudiro at a dinner party in North Carolina
Date: 2 May 2009

A description of software that claims to be open source, but lacks the full freedoms required by the Open Source Definition.

synonyms: see open core, neo-proprietary
antonyms: see Linux kernel, Apache, OpenNMS