What's the difference between rejection and retection?

Rejection

Definition:

(n.) Act of rejecting, or state of being rejected.

Example Sentences:

(1) Acceptance of less than ideal donors is ill-advised even though rejection of such donors conflicts with the current shortage of organs.
(2) Factors associated with higher incidence of rejection included loose sutures, traumatic wound dehiscence, and grafts larger than 8.5 mm.
(3) But the Franco-British spat sparked by Dave's rejection of Angela and Nicolas's cunning plan to save the euro has been given wings by news the US credit agencies may soon strip France of its triple-A rating and is coming along very nicely, thank you. "
(4) These results suggest that prevention of xenograft rejection using PAF-antagonist in association with other methods should be further investigated.
(5) Clinical diagnosis of rejection was made independently of immunological results.
(6) GlaxoSmithKline was unusually critical of the decision by Nice, the National Institute for Health and Clinical Excellence, and also the Scottish Medicines Consortium, to reject its drug belimumab (brand name Benlysta) in final draft guidance.
(7) Maintenance therapy was always steroid-free to start with (cyclosporin+azathioprine) but in almost one half of our oldest survivors, it failed to avoid rejection and we had to add low-dose oral steroids for at least several months.
(8) This alloimmune memory was shown to survive for up to 50 days after first-set rejection.
(9) The diagnosis of acute infectious enterocolitis was rejected.
(10) Thirteen of the dogs treated with various drug regimens lived for 90 days, after which time treatment was stopped; 10 of the dogs eventually rejected the grafts, but three had continued graft function for 6 months or longer and may be permanently tolerant.
(11) He campaigned for a no vote and won handsomely, backed by more than 61%, before performing a striking U-turn on Thursday night, re-tabling the same austerity terms he had campaigned to defeat and which the voters rejected.
(12) A study was conducted to assess the suppression of segmental pancreatic allograft rejection by cyclosporine (CSA) alone in baboons and dogs, and subtotal marrow irradiation (TL1) alone and TL 1 in combination with CSA in baboons.
(13) It is understood that Cooper rejected pressure from senior Labour figures last week for both her and Liz Kendall to drop out and leave the way clear for Burnham to contest Corbyn alone.
(14) The correlations between the objective risk estimates and the subjective risk estimates were low overall (r = 0.089, p = 0.08); for women rejecting (r = 0.024, p = 0.44) or accepting (r = 0.082, p = 0.12) amniocentesis.
(15) Britain First applied to use seven slogans in the elections and four were rejected, but the remaining three, including the slogan relating to Rigby, were approved by the watchdog.
(16) The value of D was found to correlate significantly with age, with the upper rejection limit (5% level) increasingly elevated from 4.8 mm at 20 years to 7.5 mm at 80 years.
(17) Ninety-two percent of the patients were not reactive to dinitrochlorobenzene after sensitization; skin allograft rejection occurred in an average of 17 days.
(18) Acquired renal cysts developed even in grafts undergoing chronic rejection, and increased numbers were found in native kidneys that were in uremic conditions for long periods, both before and after renal transplantation.
(19) In most cases, there were both quantitative and morphological differences between the infiltrates in acute rejection and in the remaining perivascular infiltrates after treatment.
(20) Additionally, it appears effective as a prophylactic treatment against acute renal and cardiac rejection in the immediate post-transplantation period.