Regressive
Pronunciation : Re*gress"ive (r*grs"v)
Part of Speech : a.
Etymology : [Cf. F. r?gressif.]
Definition : 1. Passing back; returning.
2. Characterized by retrogression; retrogressive. Regressive metamorphism. (a) (Biol.) See Retrogression. (b) (Physiol.) See Katabolism.
Source : Webster's Unabridged Dictionary, 1913