The delay ensures proper timing so that the lower chambers have time to fill completely before they contract.

With proper timing, you can shoot up into the air like an army man on a bottle rocket!

The proper timing of an examination in theatre is important.

Now that contact had been made, everything was dependent on proper timing.

His silence, then, was only a matter of proper timing.

But Damian had his own ideas of the proper timing.

With proper timing, the wheel can be brought to a great speed.

There are always staff members appointed to keep a watch on the proper timing of classes and discipline of students.

It takes proper timing, good weather, and a huge amount of luck to see one.

This information can in turn be used in deciding when the proper timing is for various therapeutic interventions.