replication nedir? replication nedir? A fold or a folding back.A reply to an answer; a rejoinder.Law The plaintiff's response to the defendant's answer or plea.An echo or reverberation.A copy or reproduction.The act or process of duplicating or reproducing something.Biology The process by which genetic material, a single-celled organism, or a virus reproduces or makes a copy of itself: replication of DNA. In scientific research, the repetition of an experiment to confirm findings or to ensure accuracy.