mosaicism

[moh-zey-uh-siz-uh m]
noun Biology.
  1. 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 of mosaicism

First recorded in 1925–30; mosaic + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

mosaicism in Medicine

mosaicism

[mō-zāĭ-sĭz′əm]
n.
  1. A condition in which tissues of genetically different types occur in the same organism.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.