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regressive

[ri-gres-iv] /rɪˈgrɛs ɪv/
adjective
1.
regressing or tending to regress; retrogressive.
2.
Biology. of, pertaining to, or effecting regression.
3.
(of tax) decreasing proportionately with an increase in the tax base.
4.
Logic. obtained from or characterized by backward reasoning.
Origin
1625-1635
1625-35; regress + -ive
Related forms
regressively, adverb
regressiveness, regressivity
[ree-gre-siv-i-tee] /ˌri grɛˈsɪv ɪ ti/ (Show IPA),
noun
nonregressive, adjective
nonregressively, adverb
unregressive, adjective
unregressively, adverb
unregressiveness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin and History for regressivity

regressive

adj.

1630s; see regress + -ive. In reference to taxation, it is attested from 1889. Related: Regressively.

Online Etymology Dictionary, © 2010 Douglas Harper
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regressivity in Medicine

regressive re·gres·sive (rĭ-grěs'ĭv)
adj.

  1. Having a tendency to return or to revert.

  2. Characterized by regression.


re·gres'sive·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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