a. [ Cf. F. régressif. ] [ 1913 Webster ]
1. Passing back; returning. [ 1913 Webster ]
2. Characterized by retrogression; retrogressive. [ 1913 Webster ]
Regressive metamorphism. (a) (Biol.) See Retrogression. (b) (Physiol.) See Katabolism. [ 1913 Webster ]
adv. In a regressive manner. [ 1913 Webster ]