Dean thought later how pivotal that moment was in his marriage.
This is why the work of the IAEA is so pivotal.
He was pivotal in helping to move the net from a purely academic group in the UK to the commercial environment.
Tumor necrosis factor alpha also plays a pivotal part in inflammation.
The Robinson family plays a pivotal role in the popular soap and Dennis is the only current cast member to appear in the first episode and remain on the show (although he did take a 13-year break in the 1990s).