Definition of Retrogression

1. Noun. Passing from a more complex to a simpler biological form.

Exact synonyms: Degeneration
Generic synonyms: Shift, Transformation, Transmutation
Specialized synonyms: Abiotrophy, Cataplasia

2. Noun. Returning to a former state.
Exact synonyms: Regress, Regression, Retroversion, Reversion
Generic synonyms: Reversal
Derivative terms: Regress, Regress, Retrogress, Retrovert, Revert

Definition of Retrogression

1. n. The act of retrograding, or going backward; retrogradation.

Definition of Retrogression

1. Noun. A deterioration or decline to a previous state ¹

2. Noun. (biology) A return to a less complex condition ¹

¹ Source:

Definition of Retrogression

1. [n -S]

Medical Definition of Retrogression

1. 1. The act of retrograding, or going backward; retrogradation. 2. Backward development; a passing from a higher to a lower state of organization or structure, as when an animal, approaching maturity, becomes less highly organised than would be expected from its earlier stages or known relationship. Synonym: retrograde development, and regressive metamorphism. Origin: Cf. F. Retrogression. See Retrograde, and cf. Digression. Source: Websters Dictionary (01 Mar 1998)

Retrogression Pictures

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Lexicographical Neighbors of Retrogression

retrograde motion
retrograde neurotransmitter
retrograde pyelography
retrogression (current term)
retrohyoid bursa
retroinguinal space
retrolental fibroplasia

Literary usage of Retrogression

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Laws of Heredity by George Archdall O'Brien Reid (1910)
"CHAPTER VI retrogression Evidence of retrogression—Theories of retrogression—Conditions under which retrogression occurs—The speed of retrogression—The ..."

2. Wilson's Photographic Magazine (1904)
"I would propose to designate this phenomenon under the name of photo- retrogression. Very probably we have to deal here with what is called in chemistry a ..."

3. Irrigation Canals and Other Irrigation Works: Including the Flow of Water in by Patrick John Flynn (1892)
"retrogression of Levels. retrogression of levels, or the lowering of the bed of a channel by erosion, on lung lines, is a serious evil in any irrigation ..."

4. Through Science to Faith by Newman Smyth (1902)
"CHAPTER IX retrogression IN EVOLUTION ONE of the questions which confront our hope of better life for man, is raised by the unmistakable fact of ..."

5. The Musical World (1862)
"retrogression is better than either, because more directly suggestive. A so-called (or as we shall call it) retrogressive imitation by one of the greatest ..."

6. The Journal of Cancer Research (1916)
"At the same tune they give some information about the processes which lead to the retrogression of tissues that have proliferated; they show in particular ..."

7. Report of the Meeting of the Australian and New Zealand Association for the by ANZAAS. (1905)
"In well-made superphosphate the retrogression is but small, but in cases where insufficient sulphuric acid has been employed, ..."

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