I forgot what the term is for widening BP readings?

Hi y'all, I was reading an article the other day in reference to blood pressure etc, and it mentioned the occurance of sometimes the systolic and diastolic readings being so far off or opposit and it bugged me that I have forgotten the medical term for this.. right on the tip of my tongue, what is it called again?
Pulse pressure

Widened pulse pressure

I was on track with widening or widened but couldn't remember "pulse" but it's all there now. Thanks again for the assist!