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Pronunciation:  ri'greshun

WordNet Dictionary
  1. [n]  returning to a former state
  2. [n]  the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x)
  3. [n]  (psychiatry) a defense mechanism in which you flee from reality by assuming a more infantile state
  4. [n]  an abnormal state in which development has stopped prematurely

REGRESSION is a 10 letter word that starts with R.


 Synonyms: arrested development, fixation, infantile fixation, regress, regression toward the mean, retrogression, retroversion, reversion, simple regression
 See Also: abnormal condition, abnormalcy, abnormality, curvilinear regression, defence, defence mechanism, defence reaction, defense, defense mechanism, defense reaction, linear regression, rectilinear regression, regression analysis, reversal, statistical method



Webster's 1913 Dictionary
\Re*gres"sion\ (r?*gr?sh"?n), n. [L. regressio: cf.
F. r['e]gression.]
The act of passing back or returning; retrogression;
retrogradation. --Sir T. Browne.

{Edge of regression} (of a surface) (Geom.), the line along
   which a surface turns back upon itself; -- called also a
   {cuspidal edge}.

{Regression point} (Geom.), a cusp.

Computing Dictionary

1. A mathematical method where an empirical function is derived from a set of experimental data.

2. regression testing.

Medical Dictionary
 Definition: A decrease in the size of a tumor, or in the extent of cancer in the body.