Pronunciation: (im"yu-nō-ju-net'iks, i-myOO"-), [key]
—n. (used with a sing. v.)
1. the branch of immunology dealing with the study of immunity in relation to genetic makeup.
2. the study of genetic relationships among animals by comparison of immunologic reactions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.