mosaicism

mosaicism

[moh-zey-uh-siz-uhm]
noun Biology.
a condition in which an organism or part is composed of two or more genetically distinct tissues owing to experimental manipulation or to faulty distribution of genetic material during mitosis.

Origin:
1925–30; mosaic + -ism

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American Heritage
Medical Dictionary

mosaicism mo·sa·i·cism (mō-zā'ĭ-sĭz'əm)
n.
A condition in which tissues of genetically different types occur in the same organism.

The American Heritage® Stedman's Medical Dictionary
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