REGRESSION
- progressive decline of a manifestation of disease [n -S]
- A return to a former or less developed state
- A return to an earlier stage of life or a supposed previous life, esp. through hypnosis or mental illness, or as a means of escaping present anxieties
- A lessening of the severity of a disease or its symptoms
- 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)