spontaneous

Hundreds of studies over the years have explored the complex genetics of autism, with both inherited and spontaneous genes contributing to the condition.

But fewer areas of Bruin Plaza, a long campus walkway, are now available for spontaneous events.

Dr Whittle says that is likely to dilute the impact of raising the contactless card limit on spontaneous, or reckless, spending - because young people, in particular, are paying by phone.

The protests appear spontaneous, with no organised leadership.

"Then everyone just burst into a mixture of spontaneous laughter and applause."