Definify.com
Webster 1913 Edition
Intensive
1.
Stretched; admitting of intension, or increase of degree; that can be intensified.
Sir M. Hale.
2.
Characterized by persistence; intent; unremitted; assiduous; intense.
[Obs.]
Sir H. Wotton.
3.
(Gram.)
Serving to give force or emphasis;
as, an
. intensive
verb or prepositionIn-ten′sive
,Noun.
That which intensifies or emphasizes; an intensive verb or word.
Webster 1828 Edition
Intensive
INTENS'IVE
,Adj.
1.
Intent; unremitted; assiduous; as intensive circumspection.2.
Serving to give force or emphasis; as an intensive particle or preposition.