Strong perfume is an immediate trigger for some, making common spaces (offices, churches) a challenge, and the beauty counters in big department stores a particular hell.

The immediate trigger for the April 20, 1879, Irishtown mass meeting is disputed.

The balance of payments situation was the immediate trigger.

The immediate trigger for the grand ceremony that will be held here on Thursday is a number, a broad span of years: 25 of them.

This was the immediate trigger for his suicidal protest.

The immediate trigger for yesterday's slide in shares was the inadequacy of a wheeze the Federal Reserve announced on Wednesday.

In addition to the immediate trigger of the Rodney King verdicts, a range of other factors were cited as reasons for the unrest.

Last week's announcement that Britain had frozen $1.6bn of Iranian assets was the immediate trigger for the embassy attack.

The immediate trigger for the operation was two incidents of kidnapping which occurred in Peshawar on the June 21, 2008.

A precipitating cause is an immediate trigger that instigates a person's action or behavior.