This year, they made a crucial discovery: a previously untested vaginal swab, which had not been known to exist.

One crucial discovery has been made in the 1980's: better schools are possible only if able teachers play a major role in their reform.

My ship's surgeon has made a crucial discovery.

He was a good student, and an efficient one, too, after making a crucial discovery.

The discovery of something crucial and formerly missing from India's literary map.

Mr. Duncan Smith cautioned against thinking the document held any crucial discoveries.

The crucial discovery was a way to reorganize connections in the middle switches to "trade wires" so that a new connection could be completed.

Dr. Avery was a medical researcher who made a single, crucial discovery about newborns' ability to breathe.

And then he made his first crucial discovery, when a trickle of moisture issued from the severed end of a vine.

That's why none of us can afford to go home: We might miss the crucial discovery of the millennium.