As used in this chapter, the following terms shall have the indicated meanings:
Any individual, corporation, partnership or other entity.
Any conduct, activity or condition which endangers the health or safety of a considerable number of persons or which endangers the health or safety of a neighborhood.
Any conduct, activity or condition which is unreasonable under the circumstances and which endangers public health or public safety shall constitute a "public nuisance"; any conduct, activity or condition which is unreasonable under the circumstances and which is substantially detrimental to public welfare shall also constitute a "public nuisance"; any conduct, activity or condition which is hereinafter deemed to create a "public nuisance" shall also constitute a "public nuisance."
Any conduct, activity or condition which is substantially detrimental to the welfare of a considerable number of persons or which is substantially detrimental to the welfare of a neighborhood. Any conduct, activity or condition which substantially disturbs or substantially annoys the peace, comfort or repose of a neighborhood shall be deemed to be "substantially detrimental to public welfare."