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a statement of the meaning of a word or phrase.
conceptual definition an identification of the personal knowledge or connotative meaning of a word. These meanings are often difficult to express; the meaning is “known” but not easily put into words.
operational definition a definition, method, or procedure used to measure or represent a concept or variable in a specific situation.
target definition the definition of a specific target that is identified on the intervention scheme of the omaha system.


In optics, the power of a lens to give a distinct image.
See also: resolving power.
[L. de-finio, pp. -finitus, to bound, fr. finis, limit]


Imaging The clearly delineated limit of a thing visible by the eye. Cf Resolution.


In optics, the power of a lens to give a distinct image.
See also: resolving power
[L. de-finio, pp. -finitus, to bound, fr. finis, limit]

definition (image),

n the property of projected images relating to their sharpness, distinctness, or clarity of outline. Penumbra width is a measure of definition. See also resolution.


establishment of a clear boundary, a clear line of demarcation.

clinical definition
an accurate description of the disease in terms of clinical signs and clinicopathological findings.
epidemiological definition
an accurate description of the disease in terms of its epidemiological parameters of when, where, why and how it has occurred.
genetic definition
an accurate description of a disease in terms of the familial relationships between affected animals.
radiographic definition
a sharp line of demarcation between radiographic densities. A gradual merging of densities creates blurring of the image.

Patient discussion about definition

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.

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References in periodicals archive ?
Crivelli links ordinary and definitional sentences to an account of not-being that is grounded in difference (Chapter Five).
For both years, the largest downward adjustments to Canadian southbound transactions result from definitional adjustments to eliminate withholding taxes from unilateral current transfers; from definitional adjustments to unaffiliated services, mainly financial services; and from statistical adjustments to affiliated services.
Dancy goes on to suggest that Socrates' failure to announce any metaphysical views in the definitional dialogues provides a reason for thinking that he has no such views.
The 'institutional' explanation for such a marked difference in the quantity of definitional and normative notions has to do with the legal systems that predominate in the regions, either the Anglo-Saxon common law tradition, or the continental European civil law system.
Although franchisors' franchise offerings also will satisfy the definition of a "business opportunity" under the proposed Bus Opp Rule, the rule explicitly exempts franchisors who (a) satisfy the definitional elements of a "franchise" under the Franchise Rule; (b) utilize a written contract; and (c) require the purchaser to make a payment that meets the Franchise Rule's minimum $500 payment requirement.
Given the fact that each of the consolidating corporations or amalgamating corporations continues in the resulting corporation, there was a Concern that the transferee corporation would not be considered to have ceased its separate legal existence, and consequently the transaction would not adhere to the strict definitional requirements.
Second, the book covers the range of paramount issues surrounding neglect, including definitional considerations, child maltreatment policy, and the roles of culture, poverty, and substance abuse.
I am sure these definitional issues will run their course but for once I don't think they are as important as the actual spirit which is there now which is to say there is not something which can justify that (terrorism) and that is why I feel myself that the most important statement in the whole code is the statement 'terrorism can never be justified'.
While the EU issued the directives in 2003, there are still definitional aspects that have to be finalized and must be translated by a number of member nations into law, creating confusion and ambiguity.
For example, in perusing the roughly dozen dictionaries that surround me, I came upon a few definitional facets that seem relevant here, including a meeting place for open discussion; an occurrence involving audience discussion and/or exploration of a problem by several authorities; and a place where questions of public concern can be discussed or decided.
This parallels the counseling profession as a whole, which has also failed to promote definitional clarity and discussion on advocacy behaviors of professional counselors (Toporek & Reza, 2001).
Part of the reason why we don't use the word culture and [instead] call the behaviors 'traditions' is to sidestep the whole definitional argument and focus attention on the phenomena themselves--on their biological significance," Manson explains.