(n.) An invitation to engage in a contest or controversy of any kind; a defiance; specifically, a summons to fight a duel; also, the letter or message conveying the summons.
(n.) The act of a sentry in halting any one who appears at his post, and demanding the countersign.
(n.) A claim or demand.
(n.) The opening and crying of hounds at first finding the scent of their game.
(n.) An exception to a juror or to a member of a court martial, coupled with a demand that he should be held incompetent to act; the claim of a party that a certain person or persons shall not sit in trial upon him or his cause.
(n.) An exception to a person as not legally qualified to vote. The challenge must be made when the ballot is offered.
(n.) To call to a contest of any kind; to call to answer; to defy.
(n.) To call, invite, or summon to answer for an offense by personal combat.
(n.) To claim as due; to demand as a right.
(n.) To censure; to blame.
(n.) To question or demand the countersign from (one who attempts to pass the lines); as, the sentinel challenged us, with "Who comes there?"
(n.) To take exception to; question; as, to challenge the accuracy of a statement or of a quotation.
(n.) To object to or take exception to, as to a juror, or member of a court.
(n.) To object to the reception of the vote of, as on the ground that the person in not qualified as a voter.
(v. i.) To assert a right; to claim a place.
Example Sentences:
(1) Bronchial challenge caused an immediate asthmatic response.
(2) When chimeric animals were subjected to a lethal challenge of endotoxin, their response was markedly altered by the transferred lymphoid cells.
(3) This frees the student to experience the excitement and challenge of learning and the joy of helping people.
(4) The degree of increase in Meth responsiveness elicited by the initial provocation is a major factor in determining the airway response to a subsequent HS challenge.
(5) Intranasal challenge of allergic subjects with the allergen to which they are sensitive rapidly produces sneezing, rhinorrhea, and airway obstruction.
(6) Matthias Müller, VW’s chief executive, said: “In light of the wide range of challenges we are currently facing, we are satisfied overall with the start we have made to what will undoubtedly be a demanding fiscal year 2016.
(7) In 1935, Einstein challenged the prevailing interpretation of quantum theory.
(8) A shrinking populace is perhaps a greater challenge than any problems with Russia.
(9) Intraperitoneal injection of indomethacin to pretreated animals resulted in increased levels of IL-1 and TNF and decreased levels of PGE2 following challenge with E. coli.
(10) Think of Nelson Mandela – there is a determination, an unwillingness to bend in the face of challenges, that earns you respect and makes people look to you for guidance.
(11) The children's pulse, pulse rate variability, and blood pressure were then measured at rest and during a challenging situation.
(12) At first it looked as though the winger might have shown too much of the ball to the defence, yet he managed to gain a crucial last touch to nudge it past Phil Jones and into the path of Jerome, who slipped Chris Smalling’s attempt at a covering tackle and held off Michael Carrick’s challenge to place a shot past an exposed De Gea.
(13) The results support the notion that mediator lymphocytes circulate in tumor immunized rats in a noncytotoxic state, specifically recognize tumor cells at a challenge site, and mediate induction of effector cells locally.
(14) The role of blood acetylcholinesterase in moderating the effects of organophosphate challenge in rats was tested.
(15) In the first trial to investigate the effect of tick control, significant improvements in liveweight gain (LWG) occurred only in periods of medium to high challenge with adult Amblyomma variegatum.
(16) The SNT and the I-ELISA indicated that the pigs responded to vaccination and challenge.
(17) When caffeine evokes a contraction, and only then, crayfish muscle fibers become refractory to a second challenge with caffeine for up to 20 min in the standard saline (5 mM K(o)).
(18) This observation seriously challenges the hypothesis that SCE cancellation results as a consequence of persistence of the lesions induced by these agents.
(19) Injection of about four ImD 50 of vaccine intracerebrally produced a local immunity, resulting in an immediate kill of challenge organisms given 14 days later.
(20) There was no correlation between anti-TNP-precipitating antibody titer after sensitization and the ability to respond to challenge by hapten-heterologous carrier.
Threat
Definition:
(n.) The expression of an intention to inflict evil or injury on another; the declaration of an evil, loss, or pain to come; menace; threatening; denunciation.
(n.) To threaten.
Example Sentences:
(1) The Hamilton-Wentworth regional health department was asked by one of its municipalities to determine whether the present water supply and sewage disposal methods used in a community without piped water and regional sewage disposal posed a threat to the health of its residents.
(2) A full-scale war is unlikely but there is clear concern in Seoul about the more realistic threat of a small-scale attack on the South Korean military or a group of islands near the countries' disputed maritime border in the Yellow Sea.
(3) A Swedish news agency said it had received an email warning before the blasts in which a threat was made against Sweden's population, linked to the country's military presence in Afghanistan and the five-year-old case of caricatures of the prophet Muhammad by Swedish artist Lars Vilks.
(4) Child age was negatively correlated with mother's use of commands, reasoning, threats, and bribes, and positively correlated with maternal nondirectives, servings, and child compliance.
(5) Newspapers and websites across the country have been reporting the threat facing nursery schools for weeks, from Lancashire to Birmingham and beyond.
(6) Unfortunately, peanut reaction is not outgrown and remains a life-long threat.
(7) He was often detained and occasionally beaten when he returned to Minsk for demonstrations, but “if he thought it was professional duty to uncover something, he did that no matter what threats were made,” Kalinkina said.
(8) The home secretary was today pressed to explain how cyber warfare could be seen as being on an equal footing to the threat from international terrorism.
(9) In January a similar group of MPs warned of a threat to Cameron in 2014 unless he improves the Tories' standing.
(10) To be sure, when Russia withdrew Cuba's only deterrent against ongoing US attack with a severe threat to proceed to direct invasion and quietly departed from the scene, the Cubans would be infuriated – as they were, understandably.
(11) What are the major threats that face the world's coral reefs and what more needs to be done to protect them?
(12) This investigation examined the role of anabolic steroids on baseline heart rate (HR) and HR responses to the threat of capture in Macaca fascicularis.
(13) "I was in the car with Matthew and he held out his phone and said: 'We need to talk about this' with a very serious face, and my immediate thought was somebody had found where I lived and had made a direct threat.
(14) In addition to the threat of industrial espionage to sustain this position, there is an inherent risk of Chinese equipment being used for intelligence purposes.
(15) In the UK the twin threat of Ukip and the BNP tap into similar veins of discontent as their counterparts across the English channel.
(16) But today, Americans increasingly no longer shy away from saying they oppose mosques on the grounds that Muslims are a threat or different.
(17) Lazarus' phenomenological theory of stress and coping provided the basis for this descriptive study of perceived threats after myocardial infarction (MI).
(18) An Associated Press analysis found no evidence that Texas authorities were investigating threats to pharmacies, though the Oklahoma attorney general said he was examining an alleged bomb threat to a pharmacy in Tulsa .
(19) City landed the former Barcelona chief executive, Ferran Soriano , and many thought the two former Barça men's recruitment looked a threat to the Italian, especially with Pep Guardiola on sabbatical and looming over any potential vacancies at Europe's top clubs.
(20) 8.59pm BST Mary and Paul would have received death threats if Ruby had won, I think.