n pl but sing in constr :  a branch of immunology concerned with the interrelations of heredity, disease, and the immune system esp. with regard to the way in which the genetic information required to produce the diversity of antibodies required by the immune system is stored in the genome, transmitted from one generation to the next, and expressed in the organism im*mu*no*ge*net*ic adj im*mu*no*ge*net*i*cal*ly adv 
 
 
 
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