Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to definitive: definitive care


/de·fin·i·tive/ (dĕ-fin´ĭ-tiv)
1. established with certainty.
2. in embryology, denoting acquisition of final differentiation or character.
3. in parasitology, denoting the host in which a parasite reaches the sexual stage.


Biology Fully formed or developed, as an organ or structure.

de·fin′i·tive·ly adv.
de·fin′i·tive·ness n.


Etymology: L, definitivus, a limiting
1 final; clearly established without doubt or question.
2 (in embryology) fully formed in the final differentiation of a tissue, structure, or organ. Compare primitive.
3 (in parasitology) pertaining to the host in which the parasite undergoes the sexual phase of its reproductive cycle.


Fully differentiated or developed.

Patient discussion about definitive

Q. What is the Definition of Anemia? My doctor told me I have anemia, based on my latest blood tests. What is anemia?

A. In laymans terms it is low iron. Most women get it sometime in their lives due to menstration and other factors. You need to increase your iron intake. Lots of beets, beans, spinich, and lots of other foods can help.

Q. what is the definition of Autism? how would i know if one is autistic and the other one is not , or has only minor disorder ?

A. Autism is a brain development disorder that is characterized by impaired social interaction and communication, and restricted and repetitive behavior, all starting before a child is three years old. This set of signs distinguishes autism from milder autism spectrum disorders (ASD) such as pervasive developmental disorder not otherwise specified. Diagnosis should be made if suspected, by a specialits in child psychiatry or child developement.

Q. What is the definition of Autism?

A. Autism is defined by symptoms from each of the following three categories: qualitative impairment in social interaction, impairment in communication, and restricted repetitive and stereotyped patterns of behavior or interests.

By definition, the onset of autistic disorder is before the age of 3 years, although in some cases, it is not recognized until a child is much older.

You may read more here:

More discussions about definitive
References in periodicals archive ?
But he knows that it isn't in fact definitive, so he "asks" everyone to "reverently receive this teaching as definitive.
In addition to launching the campaign in retail, Definitive Technology is engaging Facebook fans for a chance to win an all-expenses paid trip to see John Legend perform in January in Las Vegas.
The Company anticipates signing a definitive agreement relating to its business combination with the Target within the next 30 days.
For example, the unsolicited non-binding proposal from the Third Party Group may not result in a definitive agreement for an alternative transaction.
Additional information regarding the interests of such potential participants will be included in the definitive proxy statement and the other relevant documents filed with the SEC when they become available.
Under the terms of the May 2006 Agreement, the parties agreed to enter into definitive transactional documents if Beijing Med-Pharm emerged as the winning bidder for Rongheng on the Shanghai Exchange.
In order to vote their shares in favor of the Harbinger Capital Partners agreement, shareholders should complete, date, sign and return the proxy card enclosed with the previously distributed definitive proxy statement as soon as possible.
Investors and security holders are advised to read the registration statement containing a definitive proxy statement/prospectus that will be mailed to all stockholders of record because it contains important information.
NASDAQ:CELL) and CellStar Corporation (Pink Sheets:CLST) announced today that they have entered into a definitive agreement ("Definitive Agreement") for a wholly-owned subsidiary of Brightpoint, Inc.
ICOS intends to file a revised definitive proxy statement and other documents regarding the proposed acquisition of ICOS by Lilly with the Securities and Exchange Commission (the "SEC").
There are a number of important factors that could cause actual results to differ materially from those projected, including risks associated with our ability to satisfy the conditions to closing set forth in the definitive agreement, product commercialization, research and clinical development, regulatory approvals, manufacturing, collaboration arrangements, liquidity, competition, intellectual property claims, litigation and other risks detailed in our latest Quarterly Report on Form 10-Q and our other public filings with the Securities and Exchange Commission.
Stockholders are urged to read the Company's amended preliminary proxy statement and, when available, the Company's definitive proxy statement in connection with the Company's proposed business combination because these proxy statements will contain important information concerning Summer Infant and the Company's proposed business combination.