0 a return to a previous and less advanced or worse state, condition, or way of behaving:
1 the fact of an illness or its symptoms (= effects) becoming less severe:
She claims to be able to induce a past-life regression through hypnosis.
Virtually no regime was immune from the economic regression of the early 1980s.
It is hoped that this regimen will result in clinical tumour regression in patients with metastatic melanoma.
Histological measurements performed at 3 months were striking, with signs of disease regression in all patients in the trial.
The frequency of such regressions in cancer is not yet known; however, it is generally accepted that they are extremely rare.
Logistic regression was used to determine whether the number of items requested and publication date influenced the likelihood of response.
Treatment effects did not differ by site or gender in random effects regression models.
