n. the ability of a program (or software system) to execute properly on multiple hardware platforms
n. the ability of an employee to move between different social security schemes without losing their contributions
the GNU version of the Collaborative International Dictionary of English
n. The quality or state of being portable; fitness to be carried.
The Century Dictionary and Cyclopedia
n. The state of being portable; fitness to be carried; portableness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of being light enough to be carried
Word Usage
"Such data portability is an area where Facebook has faced much criticism, but privacy advocates at the Center for Democracy and Technology say this feature is a "very bold step" toward giving users more control over their own information."