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the act or process of rejecting.
the state of being rejected.
something that is rejected.

rejection re·jec·tion (rĭ-jěk’shən)

The act of rejecting or the state of being rejected.

The failure of a recipient’s body to accept a transplanted tissue or organ as the result of immunological incompatability; immunological resistance to foreign tissue.

rejection definition

A process in which the immune system of a body attacks an organ or tissue, either its own or tissue transplanted into it from another organism. (See xenotransplantation.)

Note: Rejection is the most serious problem faced in surgery involving organ transplants. Drugs are used to suppress the immune system after organ transplant in order to prevent the rejection of and eventual death of the transplanted tissue.


Read Also:

  • Rejectionist

    [ri-jek-shuh-nist] /rɪˈdʒɛk ʃə nɪst/ noun 1. an Arab leader or country that opposes accommodation or compromise in negotiations with Israel. 2. any person or group that refuses to compromise in a dispute. adjective 3. of or relating to rejectionists.

  • Rejection-region

    noun, Statistics. 1. the set of values of a test statistic for which the null hypothesis is rejected.

  • Rejection-slip

    noun 1. a notification of rejection, attached by a publisher to a manuscript before returning the work to its author.

  • Rejective

    verb (used with object) 1. to refuse to have, take, recognize, etc.: to reject the offer of a better job. 2. to refuse to grant (a request, demand, etc.). 3. to refuse to accept (someone or something); rebuff: The other children rejected him. The publisher rejected the author’s latest novel. 4. to discard as useless […]

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