(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.
Hurdle
Definition:
(n.) A movable frame of wattled twigs, osiers, or withes and stakes, or sometimes of iron, used for inclosing land, for folding sheep and cattle, for gates, etc.; also, in fortification, used as revetments, and for other purposes.
(n.) In England, a sled or crate on which criminals were formerly drawn to the place of execution.
(n.) An artificial barrier, variously constructed, over which men or horses leap in a race.
(v. t.) To hedge, cover, make, or inclose with hurdles.
Example Sentences:
(1) Arsenal’s 10 men fall at the first hurdle against Dinamo Zagreb Read more This win, even against such feeble opponents, was celebrated, with the locals chorusing their manager’s name amid a wave of relief given so much of the team’s domestic campaign to date has been dismal.
(2) The idea was to create a simple set of standards that everyone can relate to, a low hurdle that every humanitarian organisation should be able to leap over.” As organisations grow, they can aspire to use more technical standards that more established NGOs might already be working with.
(3) The physician who cares for adolescents has the responsibility of helping parenting teens to find needed support so that they will be able to overcome this significant hurdle.
(4) When I had that keyhole surgery, I thought: ‘Maybe, if I come back, it won’t be to that top level.’ But with the support I have been getting from my coach, family and friends, I think that really motivated me to come back strong.” Kenya is more famed for its distance runners and steeplechasers than its hurdlers, but the country was left celebrating a surprise gold medal in the 400m hurdles when Nicholas Bett powered home from lane nine to smash his personal best to win in 47.79sec.
(5) Cards pile on the runs, and here comes Hurdle to get Burnett, about three batters too late.
(6) However, despite repeated questions from reporters, Earnest did not rule out Obama approving fast-track without TAA if that combination somehow made it through procedural hurdles in the Senate.
(7) The government is thought to believe that a major hurdle in attracting participants was the fact that it was seen as a service for the lowest socioeconomic groups.
(8) Only a handful of opposition MPs have hurdled the obstacles to win election.
(9) While some predicted their team would once again choke at the final hurdle, the chancellor had faith the “system” would be fully endorsed.
(10) Finding the funds to invest in durable and improved sanitation remains a major hurdle.
(11) Her celebrated experiment with a pseudonym as a demonstration of the hurdles facing unknown writers being just one example.
(12) I just thought it was a little beyond me this year.” On those hazy days in London Ennis-Hill had blown away the opposition with a nerveless and spectacularly quick hurdles on the opening morning of competition that left her cruising to victory.
(13) The great hurdle in all space missions is the cost of launch and the weight of fuel.
(14) However, if what happened with Indiegogo is any indication, the project will likely face more legal hurdles in the future.
(15) Carmarthen ham, an air-dried ham similar to serrano, which has been produced to a recipe by five generations of the same Welsh family, is likely to be the next UK food application to clear the regulatory hurdles.
(16) Some people believe that it just works but the reality is that the online buyer-seller relationship can falter at any one of a number of hurdles.
(17) Medical barriers to family planning (FP) are identified as contraindications, eligibility, process hurdles, the provider of contraception, provider bias, and regulation.
(18) Extinction was conducted in the runway, and subsequently the animals were tested for hurdle-jump escape from the frustrating goal box.
(19) Then they let me go in.” It wasn’t a straightforward process, he explains: his first go was on his own, on videotape; having negotiated that hurdle, he read for casting director Ellen Chenoweth; only then did he get to audition – twice – in front of the Coens themselves.
(20) The pension scheme is regarded as a hurdle to a rescue deal.