# microchimera

> English word · Noun

## Definitions
1. A microchimeric cell
2. A type of human chimera produced when fetal stem cells or maternal cells cross the placenta (fetal-maternal microchimerism) or following blood transfusion (transfusion-associated microchimerism) or organ transplantation.

## Etymology
From micro- + chimera.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/microchimera