资料来源 : pyDict

进步论者,社会进步论者

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Progressionist \Pro*gres"sion*ist\, n.
   1. One who holds to a belief in the progression of society
      toward perfection.

   2. One who maintains the doctrine of progression in organic
      forms; -- opposed to {uniformitarian}. --H. Spencer.