Dean thought later how pivotal that moment was in his marriage.
This is why the work of the IAEA is so pivotal.
Tumor necrosis factor alpha also plays a pivotal part in inflammation.
Since the start of the relationship between movies and advertising sales, movie posters have been pivotal in letting those who already attend the movies know that a new film they may be interested in will soon be released.
He was pivotal in helping to move the net from a purely academic group in the UK to the commercial environment.