Genetically identical or closely related, so as to allow tissue transplant; immunologically compatible.
Referring to individuals or tissues that have an identical or closely similar genetic make-up, especially one that will allow the transplanting of tissue without provoking an immune response.
Descriptive of individuals or cells without detectable tissue incompatibility. Strains of mice that are inbred for a great number of generations become syngeneic. Identical twins may be syngeneic.