definite

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Clearly defined; explicitly precise: synonym: explicit.
• adjective Forthright and unambiguous.
• adjective Clearly developed or firmly decided.
• adjective Readily distinguished or certain.
• adjective Grammar Limiting or particularizing.
• adjective Of a fixed number usually less than 20, as certain floral organs, especially stamens.
• adjective Cymose; determinate.

from The Century Dictionary.

• Having fixed limits; bounded with precision; determinate: as, definite dimensions; definite measure.
• Expressly or precisely prescribed, fixed, or established.
• Having clear limits in signification; determinate; certain precise: as, a definite word, term, or expression.
• Fixed; determinate; exact.
• In grammar, defining; limiting: applied to the article the and its correspondents in other languages.
• In botany: Of a constant number, not exceeding twenty: as, stamens definite.
• Limited in development: as, a definite inflorescence. See centrifugal inflorescence, under centrifugal.
• noun A thing defined.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Having certain or distinct; determinate in extent or greatness; limited; fixed
• adjective Having certain limits in signification; determinate; certain; precise; fixed; exact; clear.
• adjective obsolete Determined; resolved.
• adjective Serving to define or restrict; limiting; determining.
• adjective (Gram.) the article the, which is used to designate a particular person or thing, or a particular class of persons or things; -- also called a definitive. See Definitive, n.
• adjective (Bot.) See Determinate inflorescence, under Determinate.
• adjective (Chem.) the essential law of chemical combination that every definite compound always contains the same elements in the same proportions by weight; and, if two or more elements form more than one compound with each other, the relative proportions of each are fixed. Compare Law of multiple proportions, under Multiple.
• noun obsolete A thing defined or determined.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Having distinct limits.
• adjective Free from any doubt.
• adjective linguistics Designating an identified or immediately identifiable person or thing.
• noun obsolete Anything that is defined or determined.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective precise; explicit and clearly defined
• adjective known for certain