seminal

It represents a seminal moment in the history of the internet.

In the long sweep of LGBT equality, it could have stood as a seminal moment.

I had some real seminal experiences in [California] … I was a weird kid and it was a weird place and it just fit.

Capital in the Twenty-First Century is already being hailed as a seminal work of economic thought, and with very good reason.

His Seven Pillars of Wisdom is one of the seminal war memoirs of this or any time.

[the seminal pulp crime magazine which first published Hammett].

Without her aid, this seminal principle of mischief, this root of Upas, could not have been planted.

Thereupon his anxiety became extreme, and simultaneously he experienced his first seminal emission.

On one occasion, however, he had a seminal emission during the night in association with a feeling of anxiety.

In his seminal dreams, the image of the rose always played a leading part.

We may also, in this connexion, think of the seminal emissions sometimes observed in cases of suicidal hanging.