regression
/rɪˈgreʃən/noun
mass noun
1
- a return to a former or less developed state后退; 倒退, 退化。
1.1
- a return to an earlier stage of life or a supposed previous life, especially through hypnosis or mental illness, or as a means of escaping present anxieties（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：
as modifier regression therapy.回归疗法。
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。
2
- Statistics 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)【统计】回归。