the quality of being sustained or continuous; duration; persistence

Development that meets current needs without compromising the ability of future generations to meet their own needs; includes environmental protection and resource management.

able to be maintained at a certain rate or level; sustainable

A condition of profound brain damage in which a person is awake but shows no sign of awareness.

(medicine) a condition in which a patient with severe brain damage is in a state of partial arousal rather than true awareness

length of time during which something continues