(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.
Pessimistic
Definition:
(a.) Of or pertaining to pessimism; characterized by pessimism; gloomy; foreboding.
Example Sentences:
(1) A rather pessimistic wind is blowing over cancer chemotherapy, while a not very objective enthusiasm for second generation immunotherapy is raising its head.
(2) We challenge this pessimistic approach, and describe here our experience with seven patients with solid tumors, in whom pericardial effusion was diagnosed; one of them is described in detail.
(3) Verbally abused children were more angry and more pessimistic about their future.
(4) Has recently sounded pessimistic about the prospects for a full post-Copenhagen treaty: "You should not have too many expectations."
(5) Two groups, one institutionalized and the other noninstitutionalized but without formal activities, were described as being disengaged: e.g., withdrawn socially, self-absorbed, as well as powerless, pessimistic, and depressed.
(6) It is concluded that the heretofore pessimistic outlook regarding complete quadriplegia is unwarranted and that a more aggressive approach may result in a better functional outcome.
(7) "What our study has shown is that this applies similarly to dogs – that a 'glass half full' dog is less likely to be anxious when left alone than one with a more 'pessimistic' nature."
(8) "It's like watching a bullfight," says one Conservative backbench pessimist.
(9) The agency hopes it can later extend the work to urban rivers outside London, but is pessimistic that parts of the Fleet might one day be released to public view.
(10) It is a totally unrealistic, pessimistic vision about what this country can achieve."
(11) Rehabilitation of patients with chronic respiratory disease has tended to be neglected in the past, partly because of a generally pessimistic view of their prospects.
(12) Another important factor is the lack of motivation shown by attending physicians to detect less obvious cases of alcohol dependence as they feel pessimistic about dealing with this condition.
(13) Predictions based on very early assessment are, therefore, often unduly pessimistic.
(14) If we’re being pessimistic about it, the whole idea of the euro has been weakened and maybe we’ll look back and see this as the beginning of the end of that ideal.” She reflected a pessimistic feeling among Germans, whether financial experts or ordinary folk on the street, that the whole of Europe had taken a battering over the negotiations, one from which it would take time to recover; and the strong belief that the very same politicians would once again find themselves in a huddle over the same issue a few months down the line.
(15) A substantial number of people who start small businesses have no qualifications beyond secondary school, he says, and, worse, may have no technical or business management training Peter Strong, of the Small Business Association , is less pessimistic.
(16) The estimated overall risk difference remained negative even when all patients in the sclerotherapy group with an unknown survival status were pessimistically considered dead at the end of the follow-up period.
(17) In the pessimistic case, UK income falls by 3.1%, or £50bn a year.” More business leaders lined up on Thursday to voice their concerns that the UK economy will be a significant casualty of a decision to leave the EU, including Sir Martin Sorrell, chief executive of the advertising firm WPP.
(18) It is a measure of how pessimistic the MPC has become that even a one percentage point lowering in the assumed policy rate profile was deemed insufficient to offset the bad news on demand.
(19) The only thing maintaining the flow of migrants is that nobody reads the Daily Mail until they arrive, and only then do they realise how coarse and brutal our politics have become, how pessimistic.
(20) Women and more pessimistic parents were more distressed.