In biology, the condition of an organism made up of cells from two or more genetically distinct sources; in general usage, the state of being chimeric.
From Greek 'Chimaira' plus the suffix '-ism,' creating a noun for the condition or phenomenon of being made of incongruous parts.
Chimerism actually happens naturally—human women carrying male fetuses develop chimerism with fetal cells, and some people have two different blood types, making us all potential walking Greek monsters at the genetic level.
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