What's the difference between certain and curtain?

Certain


Definition:

  • (a.) Assured in mind; having no doubts; free from suspicions concerning.
  • (a.) Determined; resolved; -- used with an infinitive.
  • (a.) Not to be doubted or denied; established as a fact.
  • (a.) Actually existing; sure to happen; inevitable.
  • (a.) Unfailing; infallible.
  • (a.) Fixed or stated; regular; determinate.
  • (a.) Not specifically named; indeterminate; indefinite; one or some; -- sometimes used independenty as a noun, and meaning certain persons.
  • (n.) Certainty.
  • (n.) A certain number or quantity.
  • (adv.) Certainly.

Example Sentences:

  • (1) One hour after direct mechanical cardiomassage (DMCM) a moderately pronounced edema of the intercellular spaces in the basal compartment of the seminiferous epithelium, normal content of lactate and succinate dehydrogenases, and a certain decrease in the activity of glucose-6-phosphate dehydrogenases and NAD- and NADP-diaphorases were noted.
  • (2) Work on humoral responses has focused on lysozyme, the hemagglutinins (especially in the oyster), and the clearance of certain antigens.
  • (3) Stress is laid on certain principles of diagnostic research in the event of extra-suprarenal pheochromocytomas.
  • (4) As a group, the three mammalian proteins resemble bovine serum conglutinin and behave as lectins with rather broad sugar specificities directed at certain non-reducing terminal N-acetylglucosamine, mannose, glucose and fucose residues, but with subtle differences in fine specificities.
  • (5) A segment of vas deferens was transplanted to the contralateral deferens with the intention of improving treatment for certain cases of infertility caused by obstruction.
  • (6) hypoglossal nucleus), whereas in other areas the angiotensinogen gene was expressed only in a certain population of glial cells.
  • (7) The following conclusions emerge: (i) when the 3' or the 3' penultimate base of the oligonucleotide mismatched an allele, no amplification product could be detected; (ii) when the mismatches were 3 and 4 bases from the 3' end of the primer, differential amplification was still observed, but only at certain concentrations of magnesium chloride; (iii) the mismatched allele can be detected in the presence of a 40-fold excess of the matched allele; (iv) primers as short as 13 nucleotides were effective; and (v) the specificity of the amplification could be overwhelmed by greatly increasing the concentration of target DNA.
  • (8) Certainly, Saunders did not land a single blow that threatened to stop his opponent, although he took quite a few himself that threatened his titles in the final few rounds.
  • (9) We present a mathematical model that is suitable to reconcile this apparent contradiction in the interpretation of the epidemiological data: the observed parallel time series for the spread of AIDS in groups with different risk of infection can be realized by computer simulation, if one assumes that the outbreak of full-blown AIDS only occurs if HIV and a certain infectious coagent (cofactor) CO are present.
  • (10) HDAra-C in combination with anthracyclines is now considered to be a treatment which may afford some hope of a cure in a certain percentage of cases of adult acute non-lymphocytic leukemia.
  • (11) These results suggest that a certain minimum level of expression of c-myc is required for the maintenance of ras transformation in NIH 3T3 cells.
  • (12) This "paradox of redistribution" was certainly observable in Britain, where Welfare retained its status as one of the 20th century's most exalted creations, even while those claiming benefits were treated with ever greater contempt.
  • (13) In certain cases, the effects of these substances are enhanced, in others, they are inhibited by compounds that were isolated from natural sources or prepared by chemical synthesis.
  • (14) Accumulating evidence indicates that for most tumors, the switch to the angiogenic phenotype depends upon the outcome of a balance between angiogenic stimulators and angiogenic inhibitors, both of which may be produced by tumor cells and perhaps by certain host cells.
  • (15) The findings indicate that these spaces were lined by a lipid monolayer which formed bilayered lamellae under certain conditions.
  • (16) Positive feedback effects on serum gonadotrophins in castrates were observed following injection of certain doses of some steroids.
  • (17) Hence, presence of IgG rheumatoid factor correlated positively with the presence of rheumatoid disease, and evidence was established that certain features of rheumatoid inflammation occur in dental periapical lesions of many patients with rheumatoid disease.
  • (18) The typology developed in two previous surveys of illicit heroin products is applicable to many of the samples studied in this work, although significant changes have occurred in the chemical profile of illicit heroin products from certain geographical regions.
  • (19) The presence of an inverse correlation between certain tryptophan metabolites, shown previously to be bladder carcinogens, and the N-nitrosamine content, especially after loading, was interpreted in view of the possible conversion of some tryptophan metabolites into N-nitrosamines either under endovesical conditions or during the execution of the colorimetric determination of these compounds.
  • (20) An electrogenic sodium-potassium pump appears to contribute materially to the steady-state potential and to certain of the transient potential responses of vascular smooth muscle.

Curtain


Definition:

  • (n.) A hanging screen intended to darken or conceal, and admitting of being drawn back or up, and reclosed at pleasure; esp., drapery of cloth or lace hanging round a bed or at a window; in theaters, and like places, a movable screen for concealing the stage.
  • (n.) That part of the rampart and parapet which is between two bastions or two gates. See Illustrations of Ravelin and Bastion.
  • (n.) That part of a wall of a building which is between two pavilions, towers, etc.
  • (n.) A flag; an ensign; -- in contempt.
  • (v. t.) To inclose as with curtains; to furnish with curtains.

Example Sentences:

  • (1) To a supporter at the last election like me – someone who spoke alongside Nick Clegg at the curtain-raiser event for the party conference during the height of Labour's onslaught on civil liberties, and was assured privately by two leaders that the party was onside about civil liberties – this breach of trust and denial of principle is astonishing.
  • (2) In assessing damaged nets and curtains it must be recognised that anything less than the best vector control may have no appreciable impact on holoendemic malaria.
  • (3) We are drawing back the curtains to let light into the innermost corridors of power."
  • (4) Blatter’s spokesman, Klaus Stöhlker, told Press Association on Thursday: “Before the decision was taken, in the case of Russia and the USA there were ‘behind-the-curtain’ talks.
  • (5) At rostral levels, one third of the tracts are loosely built forming a king of curtain, while they become more compact at caudal levels.
  • (6) Artists in Russia have begun warning of a new "iron curtain" falling over the country, as ever more western stars become targets of the country's crackdown on culture.
  • (7) The damning comments by Judge Alistair McCreath both vindicated Contostavlos – who insisted she was entrapped by the reporter into promising to arrange a cocaine deal – and potentially brought down the curtain on the long and controversial career of Mahmood, better known as the "fake sheikh" after one of his common disguises.
  • (8) You can use absolutely anything - an unwanted T-shirt, some old curtains, something you picked up in a charity shop ... Garish 70s-style prints you probably wouldn't dream of wearing work surprisingly well in soft toys: they are cute, they can pull it off.
  • (9) But homewares, which Street calls the store chain's "point of fame", are well down as a result of fewer people moving house and therefore not popping in to John Lewis to order big-ticket items such as carpets, curtains and furniture.
  • (10) The term comes from the Urdu ( parda ) and Persian ( pardah ) word meaning veil or curtain and is also used to describe the practice of screening women from men or strangers.
  • (11) In net-curtained rooms above a disused kebab shop on Cricklewood Broadway, a small group of middle-aged men were at work as usual when they found themselves at the centre of a national terror warning.
  • (12) He had a private table on Dakota’s second floor that would often be cordoned off by a curtain upon his party’s arrival.
  • (13) Hence the nerves, hence the curtain twitching, hence the good tea cups and posh biscuits laid out on the table.
  • (14) Everyone expects it to be curtains for shipbuilding.
  • (15) Cyrus, who was standing on a nearby stage, said: “We’re all in the industry, we all do interviews and we all know how they manipulate shit.” Near the end of the broadcast, Cyrus spoke from behind a black curtain as she changed clothes.
  • (16) The few that remain benefit from ample provisions, friendly volunteers and cardboard-and-curtain partitions designed by the world-famous architect, Shigeru Ban .
  • (17) Sisal eaves curtains deterred mosquitoes from hut entry but did not kill those that had entered.
  • (18) Behind him is a blue curtain designed like the national flag with a white star and the words: "I love Somalia."
  • (19) Nigel Farage has declared it will be “curtains” for him as UK Independence party leader if he fails to win his target parliamentary seat of South Thanet.
  • (20) The log casts no further light on the blacked-out portion of the execution that lasted 27 out of the 43 minutes, in which a curtain was drawn over the viewing screen preventing witnesses from observing what was unfolding.