noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A microchimeric cell
2. 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.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.