intensive

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Of, relating to, or characterized by intensity: intensive training. See Usage Note at intense.
2. adj. Grammar Tending to emphasize or intensify: an intensive adverb.
3. adj. Possessing or requiring to a high degree. Often used in combination: research-intensive; labor-intensive.
4. adj. Relating to or being a method especially of land cultivation intended to increase the productivity of a fixed area by means of an increase in capital and labor.
5. adj. Physics Having the same value for any subdivision of a thermodynamic system: intensive pressure.
6. n. Grammar A linguistic element, such as the adverb extremely or awfully, that provides force or emphasis. Also called intensifier.

Century Dictionary and Cyclopedia

1. Pertaining or referable to intensity or degree; increasing in intensity or degree; making or becoming intense; intensifying.
2. Intense.
3. Intent; unremitted; assiduous.
4. In grammar, expressing intensity or a high degree of action or quality; serving to give force or emphasis: as, an intensive particle or prefix. Many particles and prefixes, as well as verbs, are called intensive, especially in Latin and Greek grammar, even when their force is not expressible by paraphrase or translation. Prefixes originally intensive often become neutral.
5. Logical comprehension or depth; the sum of the characters predicable of a term; the sum of consequences from a given fact.
6. n. Something serving to express intensity, or to give force or emphasis; specifically, in grammar, an intensive particle, word, or phrase.
7. In agriculture, concentrated (cultivation): designating high culture, or the principle of a small area well tilled, the purpose being to secure the most from every acre of land by means of the application of labor and fertilizers and the most thorough tillage. Compare extensive, 5.
8. In pathology, noting the treatment of disease by very large or frequently repeated doses, or by remedies of greatly increased strength or activity.

Wiktionary

1. adj. Thorough, to a great degree, with intensity.
2. adj. Demanding, requiring a great amount.
3. adj. Highly concentrated.
4. n. linguistics form of word with a stronger or more forceful sense than the root on which the intensive is built.

GNU Webster's 1913

1. adj. Stretched; admitting of intension, or increase of degree; that can be intensified.
2. adj. obsolete Characterized by persistence; intent; unremitted; assiduous; intense.
3. adj. (Gram.) Serving to give force or emphasis.
4. adj. (Agric.) Designating, or pertaining to, any system of farming or horticulture, usually practiced on small pieces of land, in which the soil is thoroughly worked and fertilized so as to get as much return as possible; -- opposed to extensive.
5. n. That which intensifies or emphasizes; an intensive verb or word.

WordNet 3.0

1. n. a modifier that has little meaning except to intensify the meaning it modifies
2. adj. tending to give force or emphasis
3. adj. of agriculture; intended to increase productivity of a fixed area by expending more capital and labor
4. adj. characterized by a high degree or intensity; often used as a combining form