between-step

Etymology
From.

Noun

 * 1) An intermediate or intermediary step, stage, process, or phase.

Adjective

 * 1)  Intermediate; intermediary; in-process; interim.
 * 2) * 1963, Measurement and Control: Interpretative Reports for Management - Volume 2 - Page 10:
 * Furthermore, in conjunction with various forms of pneumatic interlocking, the whole system fails safe, particularly in not holding a between-step condition.