definitive

Forty years after they began the task – and nearly four hundred years after receiving their first commission – sages in Paris have finally produced a new edition of the definitive French dictionary.

“Animal models are useful, but not definitive evidence for what happens in humans.”

But definitive plans on what the track will look like have not been released.

The taoiseach has faced persistent questions over the timing of the election for months, previously sidestepping requests to provide a definitive timeline.

He said the UK government was taking "definitive action" on tackling pollution with a bill which would give increased powers to regulators to tackle polluting companies.