On [LDOCE][1], at the definition page of **"neither"**, there is one definition that describes the word as a *conjunction*, with the sentence:

> *The authorities were not sympathetic to the students’ demands, **neither** would they tolerate any disruption.*

Is the usage of the word as a *conjunction* really grammatical? If so, how often is **"neither"** used like this? Is **"neither**" used like this in America as often as in United Kingdom?

*Thank you in advance!*


  [1]: https://www.ldoceonline.com/dictionary/neither