rejection

re·jec·tion   (rĭ-jěk'shən)    n.   The act of rejecting or the state of being rejected. Something rejected. 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.

rejection

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.

rejection

The refusal to accept a security that has been delivered by a customer or broker. A questionable certificate or an improper endorsement are reasons for rejection.

Main Entry: re·jec·tion
Pronunciation: ri-'jek-sh&n
Function: noun
: the act or an instance of rejecting: as a : a refusal to accept an offer b : a refusal to accept nonconforming goods as performance of a contract
NOTE: Rejection and revocation are two remedies available to the buyer under the Uniform Commercial Code after the delivery of defective goods. Goods may be rejected if they do not conform to the contract. The rejection must be made within a reasonable period after delivery, before the goods have been accepted, and notice of the rejection must be given to the seller. Acceptance of the goods can be revoked if a defect substantially impairing their value to the buyer is discovered after acceptance, but such revocation must be made within a reasonable period after the buyer has discovered, or should have discovered, the defect.

Main Entry: re·jec·tion
Pronunciation: ri-'jek-sh&n
Function: noun
1 : the action of rejecting or the state of being rejectedrejection> <rejection of the atypical child by the … group —G. S. Speer> rejection of existing institutions—H. A. Murray & C. K. Kluckhohn>
2 : an immune response in which foreign tissue (as of a skin graft or transplanted organ) is attacked by immune system components (asantibodies, T cells, and macrophages) of the recipient organism

rejection re·jec·tion (rĭ-jěk'shən)
n.

1. The act of rejecting or the state of being rejected.

2. 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.