inborn reflex

1. Conditioned reflexes are acquired instead of being inborn. They are a kind of reflex that is learned when adapting to the environment.
   条件反射是动物和人后天获得的，是个体生活过程中适应环境变化并经过学习学会的反射。

noun

1. an automatic instinctive unlearned reaction to a stimulus

   Synonym:    reflexreflex responsereflex actioninstinctive reflexinnate reflexunconditioned reflexphysiological reaction