immunosuppressant
noun/ˌɪmjənəʊsəˈpresənt/, /ɪˌmju:nəʊsəˈpresənt/
/ˌɪmjənəʊsəˈpresənt/, /ɪˌmju:nəʊsəˈpresənt/
(medical)- a drug that stops the body from reacting against antigens, for example in order to prevent the body from rejecting a new organ
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immunosuppressant