Definition of duratives:
(adj) :
(linguistics) Of or pertaining to the aspect of a verb that expresses continuing action; continuative. Part of the imperfective aspect, as opposed to the perfective aspect, of verbs.
(n) :
(linguistics) This aspect, or a verb in this aspect; a continuative.
(adj) :
Long-lasting.
(adj) :
Of or pertaining to duration.