Conduct that falls below the standardof care a reasonable person would exerciseunder certain circumstances; an unintentionalbreach of a legal duty resulting fromcarelessness, recklessness, or incompetence. See:Tort. Compare: Strict Liability.
Merriam-Webster Online Dictionarynegligence
a) the quality or state of being - negligent
b) failure to exercise the care that a reasonably prudent person would exercise in like circumstances
an act or instance of being negligent