(a.) Denying; implying, containing, or asserting denial, negation or refusal; returning the answer no to an inquiry or request; refusing assent; as, a negative answer; a negative opinion; -- opposed to affirmative.
(a.) Not positive; without affirmative statement or demonstration; indirect; consisting in the absence of something; privative; as, a negative argument; a negative morality; negative criticism.
(a.) Asserting absence of connection between a subject and a predicate; as, a negative proposition.
(a.) Of or pertaining to a picture upon glass or other material, in which the lights and shades of the original, and the relations of right and left, are reversed.
(a.) Metalloidal; nonmetallic; -- contracted with positive or basic; as, the nitro group is negative.
(n.) A proposition by which something is denied or forbidden; a conception or term formed by prefixing the negative particle to one which is positive; an opposite or contradictory term or conception.
(n.) A word used in denial or refusal; as, not, no.
(n.) The refusal or withholding of assents; veto.
(n.) That side of a question which denies or refuses, or which is taken by an opposing or denying party; the relation or position of denial or opposition; as, the question was decided in the negative.
(n.) A picture upon glass or other material, in which the light portions of the original are represented in some opaque material (usually reduced silver), and the dark portions by the uncovered and transparent or semitransparent ground of the picture.
(n.) The negative plate of a voltaic or electrolytic cell.
(v. t.) To prove unreal or intrue; to disprove.
(v. t.) To reject by vote; to refuse to enact or sanction; as, the Senate negatived the bill.
(v. t.) To neutralize the force of; to counteract.
Example Sentences:
(1) In each sheep there was a significant negative correlation between the glucose and corticosteroid concentrations in both maternal and fetal plasma, and there were positive correlations between the maternal and fetal plasma concentrations of glucose, and between the glucose and fructose concentrations of fetal plasma.
(2) In 49 cases undergoing systemic lymphadenectomy 32 were found to have glandular involvement, of which both aortic and pelvic nodes were positive in 17 cases (53.1%), aortic nodes positive but pelvic negative in six (18.8%), and pelvic nodes positive but aortic negative in nine (28.1%).
(3) Comparison of wild type and the mutant parD promoter sequences indicated that three short repeats are likely involved in the negative regulation of this promoter.
(4) We conclude that chloramphenicol resistance encoded by Tn1696 is due to a permeability barrier and hypothesize that the gene from P. aeruginosa may share a common ancestral origin with these genes from other gram-negative organisms.
(5) In patients with coronary artery disease, electrocardiographic signs of left atrial enlargement (LAE-negative P wave deflection greater than or equal to 1 mm2 in lead V1) are associated with increased left ventricular end diastolic pressure (LVEDP).
(6) Peripheral eosinocytes increased by 10%, and tests for HBsAg, antiHBs, antimitochondrial antibody and anti-smooth muscle antibody were all negative.
(7) Binding data for both ligands to the enzyme yielded nonlinear Scatchard plots that analyze in terms of four negatively cooperative binding sites per enzyme tetramer.
(8) It is suggested that the normal cyclical release of LH is inhibited in PCO disease by a negative feedback by androgens to the hypothalamus or the pituitary, and that wedge resection should be reserved for patients in whom other forms of treatment have failed.
(9) Increases in extracellular calcium antagonized the negative inotropic effect.
(10) In a further study 1082 patients with a negative or doubtful result of the physical examination were investigated using ultrasound.
(11) Control incubations revealed an inherent difference between the two substrates; gram-positive supernatants consistently contained 5% radioactivity, whereas even at 0 h, those from the gram-negative mutant released 22%.
(12) The results obtained from these test systems were all negative.
(13) After transfection in CH4C1 cells the two isoforms are coupled with adenylate cyclase while only the shortest isoform appears negatively coupled to phospholipase C. Functional D2 dopamine receptors are present in human prolactinomas.
(14) All sera samples were tested by hemagglutination inhibition (HI) test and 881 (78.5%) of those were found to be positive and 242 (21.5%) were negative.
(15) Furthermore, high-density catalase-positive--but not catalase-negative--E. coli can survive and multiply in the presence of competitive, peroxide-generating streptococci.
(16) The remaining 5 soil samples, obtained from sites that were not in close proximity to lakes, were also negative except for one that contained type B.
(17) The percentage of eggs clamped at values more negative than -65 mV, which responded at insemination by developing an If, decreased and dropped to 0 at -80 mV.
(18) Pitlike surface structures seen in negatively stained whole cells and thin sections were correlated with periodically spaced perforations of the rigid sacculus.
(19) In addition, transitional macrophages with both positive granules and positive RER, nuclear envelope, negative Golgi apparatus (as in exudate- resident macrophages in vivo), and mature macrophages with peroxidatic activity only in the RER and nuclear envelope (as in resident macrophages in vivo) were found.
(20) In Stage II patients, chemotherapy has an impact on disease mortality for ER-positive and ER-negative premenopausal women and possibly ER-negative postmenopausal patients.
Reducer
Definition:
(n.) One who, or that which, reduces.
Example Sentences:
(1) There was appreciable variation in toothbrush wear among subjects, some reducing their brush to a poor state in 2 weeks whereas with others the brush was rated as "good" after 10 weeks.
(2) Disease stabilisation was associated with prolonged periods of comparatively high plasma levels of drug, which appeared to be determined primarily by reduced drug clearance.
(3) These included bringing in the A* grade, reducing the number of modules from six to four, and a greater attempt to assess the whole course at the end.
(4) It is concluded that amlodipine reduces myocardial ischemic injury by mechanism(s) that may involve a reduction in myocardial oxygen demand as well as by positively influencing transmembrane Ca2+ fluxes during ischemia and reperfusion.
(5) Open field behaviors and isolation-induced aggression were reduced by anxiolytics, at doses which may be within the sedative-hypnotic range.
(6) With aging, the blood vessel wall becomes hyperreactive--presumably because of an augmented vasoconstrictor and a reduced vasodilator responsiveness.
(7) In addition, DDT blocked succinate dehydrogenase and the cytochrome b-c span of the electron transport chain, which also secondarily reduced ATP synthesis.
(8) Although Jeggo's Chinese hamster ovary cells were more responsive to mAMSA, novo still abrogated mAMSA toxicity in the mutant cells as well as in the parental Chinese hamster ovary cells 2,4-Dinitrophenol acted similarly to novo with respect to mAMSA killing, but neither compound reduced the ATP content of V79 cells.
(9) At pH 7.0, reduction is complete after 6 to 10 h. These results together with an earlier study concerning the positions of the two most readily reduced bonds (Cornell J.S., and Pierce, J.G.
(10) Methanosphaera stadtmanae reduces methanol to CH4 in a similar way as Methanosarcina barkeri.
(11) There is no evidence that health-maintenance organizations reduce admissions in discretionary or "unnecessary" categories; instead, the data suggest lower admission rates across the board.
(12) In schizophrenic patients the density of dopamine uptake sites in the basal ganglia was slightly reduced, mainly in the middle third of putamen.
(13) During recovery glucose uptake was reduced and citrate release was unaffected.
(14) The difference in BP between a hospital casual reading and the mean 24 hour ambulatory reading was reduced only by atenolol.
(15) Based on several previous studies, which demonstrated that sorbitol accumulation in human red blood cells (RBCs) was a function of ambient glucose concentrations, either in vitro or in vivo, our investigations were conducted to determine if RBC sorbitol accumulation would correlate with sorbitol accumulation in lens and nerve tissue of diabetic rats; the effect of sorbinil in reducing sorbitol levels in lens and nerve tissue of diabetic rats would be reflected by changes in RBC sorbitol; and sorbinil would reduce RBC sorbitol in diabetic man.
(16) This was unlike the action of the calcium channel blocker, cadmium, which reduced the calcium action potential and the a.h.p.
(17) aeruginosa and Enterococci) were significantly reduced in number during the manipulation (Fig.
(18) Arginine vasopressin further reduced papillary flow in kidneys perfused with high viscosity artificial plasma.
(19) Epidermal growth factor reduced plating efficiency by about 50% for A431 cells in different cell cycle phases whereas a slight increase in plating efficiency was seen for SiHa cells.
(20) Nicardipine lowered systolic and diastolic blood pressure to normal, plasma aldosterone was reduced and serum potassium levels were increased.