retrogression

• 指退回或倒退到先前、较不发达或较简单的状态，常用于生物学或社会语境中。

A noun referring to the process of returning to a former, less advanced, or simpler state, often used in biological or social contexts.

不可数

1. Biological simplificationC1formalscientific

   The process of an organism or species reverting to a simpler or less developed form over time.

   生物简化

   • The species showed signs of retrogression, losing complex features it once had.
   • Biologists studied the retrogression of the cave-dwelling fish, which lost its eyesight.
   • Evolutionary retrogression can occur when complex traits are no longer advantageous.

   同义词degenerationdevolutioninvolutionregression

   反义词advancementdevelopmentevolutionprogress

2. Return to a previous stateC1formal

   The act of returning to an earlier, often less advanced or less desirable condition.

   倒退

   • The country's economic retrogression was a setback after years of growth.
   • His behavior showed a retrogression to childish habits.
   • The project suffered a retrogression due to poor management decisions.

   同义词declinedeteriorationregressionrelapsereversionsetback

   反义词advanceadvancementdevelopmentgrowthimprovementprogress