(v. t.) To fix the bounds of; to bring to a termination; to end.
(v. t.) To determine or clearly exhibit the boundaries of; to mark the limits of; as, to define the extent of a kingdom or country.
(v. t.) To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly; as, the defining power of an optical instrument.
(v. t.) To determine the precise signification of; to fix the meaning of; to describe accurately; to explain; to expound or interpret; as, to define a word, a phrase, or a scientific term.
(v. i.) To determine; to decide.
Example Sentences:
(1) Brain and ganglia of embryonic Periplaneta americana were grown for 2 to 3 weeks in a chemically defined medium.
(2) In this article we report the survival and morbidity rates for all live-born infants weighing 501 to 1000 gram at birth and born to residents of a defined geographic region from 1977 to 1980 (n = 255) compared with 1981 to 1984 (n = 266).
(3) The lesion (10.6 X 9.8 mm) was a well-defined ellipsoid granuloma due to a foreign body with a central zone of necrosis surrounded entirely by a fibrous wall.
(4) Enhanced sensitivity to ITDs should translate to better-defined azimuthal receptive fields, and therefore may be a step toward achieving an optimal representation of azimuth within the auditory pathway.
(5) Anaerobes, in particular Bacteroides spp., are the predominant bacteria present in mixed intra-abdominal infections, yet their critical importance in the pathogenicity of these infections is not clearly defined.
(6) High-grade and low-grade candidemia were defined as 25 colony-forming units or more per 10 ml and 10 colony-forming units or fewer per 10 ml of blood, respectively.
(7) We reviewed our experience with femorofemoral bypass during the past 10 years to define its role relative to other methods in the treatment of aortoiliac occlusive disease.
(8) Periodontal disease activity is defined clinically by progressive loss of probing attachment and radiographically by progressive loss of alveolar bone.
(9) There is some correlation between PI values and clinical symptoms, but it is not as well defined as that between SI values and clinical symptoms.
(10) Our prospective study has defined a number of important variables in patients with clinical evidence of mast cell proliferation that can predict both the presence of SMCD and the likelihood of fatal disease.
(11) Flow cytofluorometric analysis of the strain distribution of the molecules defined by the mAb revealed that two of the antibodies (I-22 and III-5) were directed against nonpolymorphic determinants of Thy-1, whereas V-8 mAb reacted only with Thy-1.2+ lymphocytes.
(12) We conclude that neuronal activities in the region of the retrofacial nucleus are important both in the integration of stimuli from the central chemoreceptors and in defining the discharge patterns of respiratory neurons.
(13) The study of cellular cyclic AMP level in response to extracellular adenosine stimulation in dividing cells and quiescent cells showed that cells in defined medium had a lower extent of response to adenosine compared to cells cultured in serum-containing medium.
(14) The authors describe the special medical expertise of the psychiatrist and define 11 indicators, such as a patient's need for new psychotropic medication or the presence of symptoms requiring medical or laboratory procedures, that can be used to determine whether psychiatric expertise is needed.
(15) The polymerization of dATP, dCTP, and dGTP onto the defined length initiator, d(pA)10, has been carried out in four buffers.
(16) Three subcohorts were defined: 3212 men whose only exposure to asbestos was to amosite; 3430 exposed to crocidolite; and 675 to both amphiboles.
(17) The literature is reviewed to define the role of the different treatment modalities.
(18) The amount of intracellular, iodophilic, glycogen-like polysaccharide (IPS) present in cells of two strains of Streptococcus mutans at various stages of growth in a chemically defined medium was determined by quantitative electron microscopy.
(19) The Department for International Development (DfID) defines funding provided under the VUP as "financial aid to government".
(20) Patients were divided into two groups: poor outcome, defined by the death or a post-operative Karnofsky index less than or equal to 70 (n = 36), and good outcome defined by a Karnofsky index of 80 or more (n = 60).
Definition
Definition:
(n.) The act of defining; determination of the limits; as, a telescope accurate in definition.
(n.) Act of ascertaining and explaining the signification; a description of a thing by its properties; an explanation of the meaning of a word or term; as, the definition of "circle;" the definition of "wit;" an exact definition; a loose definition.
(n.) Description; sort.
(n.) An exact enunciation of the constituents which make up the logical essence.
(n.) Distinctness or clearness, as of an image formed by an optical instrument; precision in detail.
Example Sentences:
(1) Consensual but rationally weak criteria devised to extract inferences of causality from such results confirm the generic inadequacy of epidemiology in this area, and are unable to provide definitive scientific support to the perceived mandate for public health action.
(2) A definite relationship between intelligence level and the type of muscle disease was found.
(3) Definitive neurological deficits occurred in 0.09%, transient deficits were observed in 0.45%.
(4) Photograph: Guardian The research also compiled data covered by a wider definition of tax haven, including onshore jurisdictions such as the US state of Delaware – accused by the Cayman islands of playing "faster and looser" even than offshore jurisdictions – and the Republic of Ireland, which has come under sustained pressure from other EU states to reform its own low-tax, light-tough, regulatory environment.
(5) This observation not only provides definitive evidence for the photogeneration of O2-, but also indicates that only a fraction of this species is transformed into H2O2 in the absence of SOD.
(6) Definite tumor regression, improvement of some clinical symptoms, and continuous remission over 6 mo or more were observed in six, nine, and three patients, respectively.
(7) These findings lead to a definite diagnosis of chronic hypervitaminosis A.
(8) Currently there are no IOC approved definitive tests for these hormones but highly specific immunoassays combined with suitable purification techniques may be sufficient to warrant IOC approval.
(9) In the process, the DfE's definition of extremism has shifted from actual bomb-throwers to religious conservatives.
(10) This new way of thinking is reflected in the 1992 AAMR definition of what mental retardation is (Luckasson et al., 1992).
(11) Cholecystectomy provided successful treatment in three of the four patients but the fourth was too ill to undergo an operation; in general, definitive treatment is cholecystectomy, together with excision of the fistulous tract if this takes a direct path through the abdominal wall from the gallbladder, or curettage if the course is devious.
(12) Problem definition, the first step in policy development, includes identifying the issues, discussing and framing the issues, analyzing data and resources, and deciding on a problem definition.
(13) The value of benefit-risk, benefit-cost, and cost-effectiveness analyses lies not in providing the definitive basis for a decision on vaccine use or evaluation.
(14) In addition, a new dosage concepts has been introduced on the basis of the effective dose on the lines of the recommendations by the IRCP; as a result, the definitions of radiation protection areas and of dosage limit values had to be revised and reworded.
(15) The instrument is a definite aid to the surgeon, and does not penalize the time required for surgery.
(16) Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data.
(17) The patient was a forty-five-year-old female who had been troubled by obstinate Raynaud's phenomenon for ten years before the definite diagnosis of pulmonary hypertension was made.
(18) However, there is no definitive report showing that FGF exists in the thyroid.
(19) Four of 18 patients showed no change over the twenty-four hours while 7 patients showed some variation without definite diurnal pattern.
(20) No histological changes in the intestines were observed in the fasted poults whereas definite lesions were observed in the BCDCV-inoculated poults.