1. condition in which the cells of one tissue can survive in the presence of cells of another tissue; - Example: "a successful graft or transplant requires a high degree of histocompatibility"
WordNet (r) 3.0 (2006):
histocompatibility
n 1: condition in which the cells of one tissue can survive in
the presence of cells of another tissue; "a successful
graft or transplant requires a high degree of
histocompatibility"