1. Of or relating to a person or persons whose parents are immigrants.
2. Of or relating to a person or persons whose parents are citizens by birth and whose grandparents are immigrants.
3. Of, relating to, or being the second form or version available to users: a second-generation Web browser.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.