What is Public Nuisance?

Legal Definition
In English criminal law, public nuisance is a class of common law offence in which the injury, loss or damage is suffered by the local community as a whole rather than by individual victims.
-- Wikipedia
Legal Definition
A nuisance wherein the danger is to the public. See 116 Ala. 310, 67 Am. St. Rep, 119, 37 L. R. A. 497, 22 South. 593. See, also, Nuisance.
-- Ballentine's Law Dictionary
Legal Definition
the term that is given to a violation of a public right that could lead to injury or harm.