1. A member of the genus Homo and especially of the species H. sapiens.
2. A person: the extraordinary humans who explored Antarctica.

1. Of, relating to, or characteristic of humans: the course of human events; the human race.
2. Having or showing those positive aspects of nature and character regarded as distinguishing humans from other animals: an act of human kindness.
3. Subject to or indicative of the weaknesses, imperfections, and fragility associated with humans: a mistake that shows he's only human; human frailty.
4. Having the form of a human.
5. Made up of humans: formed a human bridge across the ice.

[Middle English humain, from Old French, from Latin hūmānus.]

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.