Clock-to-Q delay
Beginner
The short moment a memory cell needs after the clock tick before its new value appears at its output.
Novice
The delay from a clock tick at a flip-flop to its output (called Q) showing the newly stored value. It is the first piece of delay on every path that starts at a flip-flop.
Expert
Characterized in the Liberty library as a function of the clock edge rate and the output load, so a slow clock edge lengthens it. Timing reports show it as the first line of the data path.
Explained in Clock tree synthesis (Design Flow).