Meaning of RETROGRESSION
| Pronunciation: | | `retru'greshun
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 WordNet Dictionary |
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| | Definition: | |
- [n] returning to a former state
- [n] passing from a more complex to a simpler biological form
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| | Synonyms: | | degeneration, regress, regression, retroversion, reversion |
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| | See Also: | | abiotrophy, cataplasia, reversal, shift, transformation, transmutation | |
| Webster's 1913 Dictionary |
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| | Definition: | | \Re`tro*gres"sion\, n. [Cf. F. r['e]trogression.
See {Retrograde}, and cf. {Digression}.]
1. The act of retrograding, or going backward;
retrogradation.
2. (Biol.) Backward development; a passing from a higher to a
lower state of organization or structure, as when an
animal, approaching maturity, becomes less highly
organized than would be expected from its earlier stages
or known relationship. Called also {retrograde
development}, and {regressive metamorphism}.
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| Biology Dictionary |
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| | Definition: | | Reversal of stream grading (i.e., aggradation after degradation or vice versa). |
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