1. In teletypewriter practice, the selecting of another code group while the printing of a previously selected code group is taking place.

2. Amount by which the effective height of the scanning facsimile spot exceeds the nominal width of the scanning line.

To perform some or all of an operation concurrently with one or more other operations.

1. Movement of an upcurrent part of a shore to a position extending seaward beyond a downcurrent part.

2. Extension of strata over or beyond older underlying rocks.

3. The horizontal component of separation measured parallel to the strike of a fault.

1. Projection of the weld metal beyond the bond at the toe of the weld.

2. Extension of one sheet over another in spot, seam, or projection welding.