degenerate; deteriorate; atrophy
Meanings
2 senses · 8 examplesverb
(biology) to degenerate; to atrophy; (of organs) to become reduced or lose function during evolution
Technical term in evolutionary biology describing the reduction or loss of organs no longer needed for survival.
The whale's limbs have degenerated into flippers.
Cactus leaves have degenerated into spines to reduce water evaporation.
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Due to long-term life in dark caves, this fish's vision has gradually degenerated.
The louse's wings have completely degenerated during evolution.
verb
to deteriorate; to decline; to worsen (in quality, condition, or performance)
General use for any decline in quality, function, or condition, including abstract concepts like memory or soil quality.
His memory has obviously deteriorated recently.
The quality of this sequel has deteriorated compared to the first one.
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Soil degradation has led to a decline in crop yields.
Due to lack of maintenance, this old building has severely deteriorated.