a group, series, or set of eight identical copies (usually preceded by in). having or consisting of eight identical parts; eightfold.

What does Octuplicate mean?

1 : an eighth thing like seven others of the same kind. 2 : eight copies all alike —used with in typed in octuplicate. octuplicate.

What is the meaning quadruplicate?

1 : four copies all alike —used with in typed in quadruplicate. 2 : one of four things exactly alike specifically : one of four identical copies.