typographical error
noun1
A mistake made during the process of typing, especially one caused by a slip of the fingers.
- We're talking high-nitrogen compounds here ... and the question is not whether such things are going to be explosive hazards. (That's been settled by their empirical formulas, which generally look like typographical errors).2013 January 9, Derek Lowe, “Things I Won't Work With: Azidoazide Azides, More or Less”, in In the Pipeline:
2
A mistake made during the process of typesetting.