Longman Dictionary of Contemporary English
Wiktionary
adv. So as to vanish, or appear to vanish, especially very small, very rare.
WordNet
adv. so as to disappear or approach zero; "errors are vanishingly rare"
Usage examples of "vanishingly".
In the presence of a replicase 'machine tool', fragments of RNA will evolve, repeatedly and convergently, towards the same endpoint, an endpoint whose 'probability' seems vanishingly small until you reflect on the power of cumulative selection.
Theropod skeletons, like the Deinonychus, were rare enough to be noteworthy, but fully-articulated skeletons—skeletons that had remained pretty much connected as they had been in life—were vanishingly rare.
Theropod skeletons, like the Deinonychus , were rare enough to be noteworthy, but fully-articulated skeletons—skeletons that had remained pretty much connected as they had been in life—were vanishingly rare.
And in the vanishingly small percentage of instances when there was a germ of truth to the rumors, the rebel militia turned out to be a ragbag gang of roamers, outlaw wanderers of the outlands, justifying their robberies and murders by paying lip service to a political cause.
If vanishingly small changes may have immense and undivinable effects, still, a system has its attractors, its underlying order, and a broken balance may well be redressed.