atavistic inheritance返祖遗传
atavistic deformity返祖畸形
atavistic induction返祖诱导
atavistic process返祖现象
atavistic regeneration返祖性再生
atavistic teeth返祖牙
ADJ（形容词） Atavistic feelings or behaviour seem to be very primitive, like the feelings or behaviour of our earliest ancestors. 原始的(感觉或行为) [正式][usu ADJ n]
...an atavistic fear of snakes.
...对蛇的原始恐惧。