Define the Easement of necessity in your own words

[vustudents]

(1) An easement of necessity is an easement which under particular circumstances the law creates by virtue of the doctrine of implied grant to meet the necessity of a particular case. It is an easement which is not merely necessary for the reasonable enjoyment of the dominant tenement, but one without which that tenement cannot be used at all. Such an easement lasts only so long as the necessity exists, for a grant arising out of the implication of necessity cannot be carried further than the necessity of the case requires.