syngeneic

adj.
Genetically identical or closely related, so as to allow tissue transplant; immunologically compatible: syngeneic grafts; syngeneic animals.

[From Greek sungeneia, kinship : syn-, syn- + genos, family.]

syngeneically syn·ge·ne'i·cal·ly adv.

(sĭn'jə-nē'ĭk)
adj.

Genetically identical or closely related, so as to allow tissue transplant; immunologically compatible.

In transplantation biology, denoting individuals or tissues having almost identical genotypes, i.e. animals of the same inbred strain, or their tissues. Grafts can be as readily exchanged between syngeneic animals as between identical twins which are called isogeneic.