Original: The term is occasionally used to refer pejoratively to any experiment using living animals ; for example , the EncyclopÃ dia Britannica defines '' vivisection '' as : '' Operation on a living animal for experimental rather than healing purposes ; more broadly , all experimentation on live animals '' , although dictionaries point out that the broader definition is '' used only by people who are opposed to such work '' .
Simplified: For example , the EncyclopÃ dia Britannica described '' vivisection '' as : '' Operation on a living animal for experimental rather than healing purposes ; more broadly , all experimentation on live animals '' . However , dictionaries note that the wider definition is '' used only by people who are opposed ( dislike ) to such work '' .