1A return to a former or less developed state.

1. 1.1 A return to an earlier stage of life or a supposed previous life, especially through hypnosis.
   （尤指因催眠或精神疾患，或为逃避目前忧虑的）回到从前，回归
   the details recalled by Carol during the regression

   as modifier regression therapy

   回归疗法。

   count noun a past-life regression

   Example sentencesExamples

   • It was as if she had entered regression therapy as an experiment of curiosity and found that terrible, terrible things had happened to her in the past.
   • By going through past life regression with Serena, which sounded a lot like hypnosis, Peter now believes that he was a Nazi interrogator for the Gestapo in a past life.
   • Has anyone experienced past-life regression via hypnosis or other means?
   • This kind of hangs off the back of our resolution of assuming that people who swear by their console are either 12 years old or in regression therapy.
   • Garda sources have said the information from Niamh, a result of regression therapy, has been ‘sketchy’.
   • She made the allegations to gardaí after undergoing regression therapy in the mid-1990s in England.
   • Under hypnosis, under regression, people can remember significant events from former lifetimes.
   • She'd never had such a rewarding experience doing a past life regression.
   • It seems likely that most so-called past life regressions induced through hypnosis are confabulations fed by cryptomnesia.
   • He never thought anymore about the past life regression speech Toshi gave him on the way to L.A. the day after he met Jordan.
   • Many people have experimented with past life regression under hypnosis and claim to recall experiences from previous existences.
   • Mental or physical illness, therefore, may be considered as instituting regression to an early stage of infantile development.
   • Not surprisingly, in all regressions ADHD status made a significant contribution to the prediction of psychopathology.
   • I have no horrific sexual episodes that would only emerge through insidious regression therapy.
   • The technique was hit and miss, and past-life experiences were rare, but detractors had insisted that previous regressions influenced the hypnotized by suggesting times and places.
   • But from his own experience, Jung learned that regression can act in the service of growth and that psychiatric illness may represent an effort on the part of the psyche to heal itself.

   Synonyms

   decline, lapse, deterioration, worsening, degeneration, backsliding, recidivism, reversion, retrogression, downturn, fall, falling, falling away, slipping, drop, descent, sinking, slide
2. 1.2 A lessening of the severity of a disease or its symptoms.
   （疾病或症状的）消退
   there was 46.7 per cent complete regression in the placebo group

   服用安慰剂组中46.7％的人的症状完全消退了。

   Example sentencesExamples

   • The subject of regression of human cirrhosis is extremely important in today's health care environment.
   • We help you identify your risk factors and what you can do to prevent progression of your coronary artery disease or, better yet, promote regression of the disease.
   • The management issues are further complicated by the fact that there can be both nonprogression or even regression of disease activity with time.
   • He reported total regression of the lesion in eight of the nine cases treated.
   • They also had to experience complete or partial regression of symptoms.
   • The clinical course is unpredictable; spontaneous regression may occur following a few treatments.
   • So, they gave the credit of the natural regression of the disease to the bedrest on which everyone was placed.
   • The spontaneous regression of some tumors is usually explained as a phenomenon of the individual's own immune system attacking the tumor burden.
   • All this indicates that vascular endothelial growth factor may contribute to the establishment, progression, and regression of prostate neoplasia.
   • Symptomatic improvements or regression were claimed for five of nine lung cancer cases.
   • Use of this technique would be an excellent way to track the progression or regression of emphysema in a noninvasive way.
   • All of these were included as independent factors in the regression on elevated blood lead levels in children.
   • Four weeks later, a computed tomography scan showed spontaneous regression of some of the metastatic lesions.
   • It is also important to remember that a melanoma can undergo spontaneous regression and may not be detected, despite a thorough physical examination.
   • Reversibility of end-stage liver disease and its prediction of regression would be welcome signs in the management and treatment of cirrhosis.
   • Marked regression of the glandular tissue occurs when nursing ceases.
   • The remaining 130 patients had spontaneous regression of disease.
   • In addition, later biopsies may show disease progression or regression.
   • Because of concern for sampling error, documentation of regression requires an ample biopsy followed by examination of the entire liver.
   • While antibiotic treatment eradicates the bacteria and promotes tumor regression, the effects of re-infection on disease are more severe.

2Statistics
A measure of the relation between the mean value of one variable (e.g. output) and corresponding values of other variables (e.g. time and cost).