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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.Definition 2025
intensive
intensive
English
Adjective
intensive (comparative more intensive, superlative most intensive)
-  Thorough, to a great degree, with intensity.
-  1992, Rudolf M. Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, page vii
- Secondly, I continue to base my concepts on intensive study of a limited suite of collections, rather than superficial study of every packet that comes to hand.
 
 
 -  1992, Rudolf M. Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, page vii
 -  Demanding, requiring a great amount.
- This job is difficult because it is so labour-intensive.
 
 -  Highly concentrated.
- I took a three-day intensive course in finance.
 
 -  (obsolete) Stretched; allowing intension, or increase of degree; that can be intensified.
- (Can we find and add a quotation of Sir M. Hale to this entry?)
 
 -  Characterized by persistence; intent; assiduous.
- (Can we find and add a quotation of Sir H. Wotton to this entry?)
 
 -  (grammar) Serving to give force or emphasis.
- an intensive verb or preposition
 
 -  (medicine) Related to the need to manage life-threatening conditions by means of sophisticated life support and monitoring.
- She was moved to the intensive care unit of the hospital.
 
 
Derived terms
Terms derived from intensive
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Related terms
Translations
thorough, to a great degree, with intensity
demanding, requiring a great amount
characterized by persistence; intent; assiduous
(grammar) serving to give force or emphasis
See also
Noun
intensive (plural intensives)
- (linguistics) Form of a word with a stronger or more forceful sense than the root on which the intensive is built.