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The '''chimera''' (pronounced keye-MIR-uh) was "a fire-breathing she-monster in [[Greek mythology]] having a lion's head, a goat's body, and a serpent's tail."<ref>http://mw1.merriam-webster.com/dictionary/chimera</ref>  The monster was slain by Bellerophon, riding the winged horse, Pegasus.

The '''Chimera''' or '''Chimaera''' (pronounced keye-MIR-uh) was "a fire-breathing she-monster in [[Greek mythology]] having a lion's head, a goat's body, and a serpent's tail."<ref>http://mw1.merriam-webster.com/dictionary/chimera</ref>  The monster was slain by Bellerophon, riding the winged horse, Pegasus.

The term has multiple uses in modern [[biology]]. One prominent definition is an animal that has multiple different populations of genetically distinct [[cell]]s that originated from different [[zygotes]]. Some humans are naturally chimeric, sharing cells from a twin (often one that was never born) or a parent.<ref>http://www.theage.com.au/cgi-bin/common/popupPrintArticle.pl?path=/articles/2003/11/27/1069825920727.html </ref>

The term has multiple uses in modern [[biology]]. One prominent definition is an animal that has multiple different populations of genetically distinct [[cell]]s that originated from different [[zygotes]]. Some humans are naturally chimeric, sharing cells from a twin (often one that was never born) or a parent.<ref>http://www.theage.com.au/cgi-bin/common/popupPrintArticle.pl?path=/articles/2003/11/27/1069825920727.html </ref>