Frame slip: In the reception of framed data, the loss of synchronization between a received frame and the receiver clock, causing a frame misalignment event, and resulting in the loss of the data contained in the received frame.

Note: A frame slip should not be confused with a dropped frame where synchronization is not lost, e.g. , in the case of buffer overflow.

Source: from Federal Standard 1037C and from MIL-STD-188