Dictionary:

rejection

  (rĭ-jĕk'shən)

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1. The act of rejecting or the state of being rejected.
2. Something rejected.
3. Medicine. 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.

Banking: refusal to grant credit to an applicant because of inadequate financial strength, a poor credit history, or some other reason.

Insurance: refusal to underwrite a risk, that is, to issue a policy.

Securities: refusal of a broker or a broker's customer to accept the security presented to complete a trade. This usually occurs because the security lacks the necessary endorsements. Or because of other exceptions to the rules for Good Delivery.

noun

1. A negative response: nay, no, refusal. See affirm/deny/argue.
2. A refusal to grant the truth of a statement or charge: contradiction, denial, disaffirmance, disaffirmation, disclaimer, negation. Law traversal. See affirm/deny/argue.
3. A turning down of a request: denial, disallowance, refusal, turndown. See accept/reject.

Definition: denial, refusal
Antonyms: acceptance, allowance, approval, choice, ratification, sanction, welcome

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.)

The immune reaction of a recipient to a graft, usually an allograph, after transplantation. The recipient recognizes antigens, particularly major histocompatibility complex antigens that are different from self antigens. The rapidity and severity of the graft rejection parallels the degree of antigenic difference between donor and recipient. The primary rejection of a graft, called first set reaction, typically begins 6 to 10 days after engraftment and in the case of skin is characterized by an erythematous zone around the graft which subsequently shrinks and is rejected. Rejection is predominantly a cell-mediated immune response, particularly Th1 lymphocytes and activated macrophages. If the same recipient receives a second graft from the same donor the graft is rejected more rapidly and the response is more severe, called a second set reaction which is also a cell-mediated response. Lymphocytes from the recipient can be adoptively transferred to a naive recipient which if also given a graft from the same donor responds with a second set reaction.

• r. factors — antibodies, particularly IgM but also IgG, directed against antigenic determinants on the Fc region of other immunoglobulins. When the immunoglobulin binds to antigen, changes occur in the folding of the protein of the Fc region such that new, nonself antigenic determinants are exposed and it is to these that rheumatoid factors, i.e. other antibodies, are directed.

Quotes:

"Any man who does not accept the conditions of human life sells his soul." - Charles Baudelaire

"Negation is the mind's first freedom, yet a negative habit is fruitful only so long as we exert ourselves to overcome it, adapt it to our needs; once acquired it can imprison us." - E. M. Cioran

"To be no part of any body, is to be nothing." - John Donne

"Dear to us are those who love us... but dearer are those who reject us as unworthy, for they add another life; they build a heaven before us whereof we had not dreamed, and thereby supply to us new powers out of the recesses of the spirit, and urge us to new and unattempted performances." - Ralph Waldo Emerson

"We keep going back, stronger, not weaker, because we will not allow rejection to beat us down. It will only strengthen our resolve. To be successful there is no other way." - Earl G. Graves

"In so far as one denies what is, one is possessed by what is not, the compulsions, the fantasies, the terrors that flock to fill the void." - Ursula K. Le Guin

See more famous quotes about Rejection

The word "rejection" was first used in 1415. The original meaning was "to throw" or "to throw back".

Rejection may mean:

• In psychology, social rejection is an interpersonal situation that occurs when a person or group of people exclude an individual from a social relationship. This may lead to an emotional state of rejection.

• In medicine, transplant rejection usually refers to the immune reaction of a host organism to a foreign biological tissue, such as in a transplantation.

• In telecommunications, rejection is the receiving of the desired signal without interference from another undesired one. See Electronic selectivity.

• In basketball, rejection is a slang term for a block.

• In manufacturing and technology, rejected components are ones that do not meet standards because they are faulty, broken or do not work in some way.

• In mathematics, rejection sampling is a technique used to generate observations from a distribution.

Rejection may also refer to:

• a song by Martin Solveig

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in writing a poem written by an unknown writter

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