tetraplicate adjective 1noun 1forms 1 adjective1 •In or of four identical experiments.The results represent the mean ± S.E. of tetraplicate experimental treatments (n = 4). — 2003 noun1 •One of a set of four identical objects, experiments, or copies.All samples were analyzed in tetraplicate on separate TLC plates. — 2004 formstetraplicates