immunosuppression
noun/ˌɪmjənəʊsəˈpreʃn/, /ɪˌmju:nəʊsəˈpreʃn/
/ˌɪmjənəʊsəˈpreʃn/, /ɪˌmju:nəʊsəˈpreʃn/
[uncountable] (medical)- the act of stopping the body from reacting against antigens, for example in order to prevent the body from rejecting a new organ
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immunosuppression