This is the ignition point.

Ignition point of paper is low.

Phosphorus has a very low ignition point.

Given the body's badly burned condition, I'd say it was the ignition point for the fire.

Where's the point of ignition?

You can make a prison lighter by short-circuiting a double-A battery with some wire and stripping the insulation at the ignition point.

They could cause an ignition at any point and igni--

Check the point of ignition from the primer.

I'd say this is the point of ignition, okay?

There was a spark. That was the point of ignition.