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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 ?
Buckley also borrows from the work of Bonaventure who highlighted the difference between apprehendere and comprehendere: "To 'apprehend' is to grasp something of reality--but only to touch on it, not to encircle it, not to grasp it definitionally.
This must be definitionally true, and Feige's estimates in this volume suggest the underestimate is substantial, with the total being nearly twice the estimate using deposits only.
And critics are definitionally 'critical' and not always in sync with mainstream Broadway audiences, who by and large go to the theater to be entertained.
this condition is definitionally met by any governmental action as
Some classical approaches hold that output is essentially always equal to its potential, so that output gaps either are definitionally zero or quickly disappear.
These flaws primarily stem from two weaknesses: terms that are definitionally vague (195) and a lack of clarity as to the appropriate method of procedural execution.
Proletariats are definitionally constituted by a condition called "oppression" and many more have been created since Marx--to such an extent, indeed, that it is not difficult to present the whole of society as constituted of oppressed minorities.
99) An initially attractive approach, then, would be to locate the source of universality in that which remains definitionally human about us--in natural facts about human beings that do not vary from culture to culture.
Not only suicide, but other heinous sins of contemporary Euro North American society -- drug-taking, alcoholism (someone who drinks alone is almost definitionally alcoholic), masturbation -- can be solitary practices.
Caught between its honorific associations with industrial progress and hygienic purity, and its more pejorative associations with weakness, luxury, and a decadent indulgence of the perverse, the American bathroom in 1964 constituted an unacknowledged ideological battleground in the endless -- because endlessly anxious -- campaign to shore up 'masculinity' by policing the borders at which sexual difference is definitionally produced, the borders at which inside and outside, same and different, self and other are the psychic stakes at risk.
To be sure, the number of versions in which a story can be told is potentially--perhaps even definitionally (Smith)-inexhaustible.
Professor Schlesinger tried to clear up the constitutional tension by redesignating the allocation of power--in short, solving the constitutional imbalance by definitionally tipping the balance in Congress' favor.