(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.
Optimistic
Definition:
(a.) Of or pertaining to optimism; tending, or conforming, to the opinion that all events are ordered for the best.
(a.) Hopeful; sanguine; as, an optimistic view.
Example Sentences:
(1) Johnson and Campion are optimistic that marriage equality will win out, and soon.
(2) Two years ago, the Intergovernmental Panel on Climate Change declared Egypt's Nile Delta to be among the top three areas on the planet most vulnerable to a rise in sea levels, and even the most optimistic predictions of global temperature increase will still displace millions of Egyptians from one of the most densely populated regions on earth.
(3) Even under the most optimistic scenarios, shale gas is projected to meet just 10% of European gas demand by 2030.
(4) I have the optimist's world view of America as a tolerant place, where anyone can grow up to be the President.
(5) He says there are many optimistic tales to tell – migrant families, he says, are helping to drive up standards in local schools – but such stories tend to get lost in an online world that has precious little interest in them.
(6) All I wanted to know was that this was not a hereditary disease – partly, I suppose, because I was so young and carefree and optimistic.
(7) I was optimistic that I could leave behind my reputation as the nerdy one of my friends.
(8) The new Poles are generally optimistic and open-minded, believing their destiny to be in their own hands, that Poland shouldn't be prisoner to its past and that the future waxes bright for their country.
(9) The Bank of England has a record of being over-optimistic about Britain's prospects and in its latest assessment of the economy once again cut its growth forecast.
(10) Excessively optimistic judgements of driving competency and accident risk have often been implicated in the disproportionate involvement of young males in traffic crashes.
(11) I would urge her to follow the example of Elizabeth I, who, on appointing as her chief minister Sir William Cecil, said of him: “This opinion I have of you: that whatever you know my personal opinion to be, you will give me advice that is best for the realm.” Valerie Crews Beckenham, Kent • Another immensely qualified person loses their job for not being optimistic enough about Brexit.
(12) English speakers are the least optimistic about the chances of avoiding dangerous climate change Out of more than 6,000 self-selecting respondents, many expressed dismay at the slow pace of political action on climate change.
(13) Both brothers had been in optimistic mood earlier in the day.
(14) Arsène Wenger said he hopes the midfielder will return in four weeks and, “if all goes well, three”, but the estimate is believed to be optimistic.
(15) The optimists, not the least of whom are the British, believe that the summit is a starting point on which to build.
(16) "We'd have preferred that, in addition to these increases, we had seen our market share grow overall this quarter but we are optimistic that some of the sector's major rebranding campaigns and marketing initiatives will start taking effect in results this year."
(17) The most optimistic of them sees a fall by 2030, but this would require huge investments in renewable energy as well as financial and technical support from overseas.
(18) Jints fans, suddenly optimistic about their postseason chances, forgot how bad their team was over the fortnight - today they are being reminded.
(19) Reagan's youthful hero was FDR – another optimist, albeit a far steelier one – who turned the federal government into the agent of recovery from the Great Depression and of victory in World War II.
(20) A recent National Audit Office study pinpointed these precisely: the DWP’s approach, it finds, is too rigid; its policy assumptions tend to be untested and over-optimistic; strategically, it fails to anticipate uncertainty (specifically, the possibility of failure); it neglects to monitor progress, so does not notice when things go wrong until far too late.