(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.
Watchword
Definition:
(n.) A word given to sentinels, and to such as have occasion to visit the guards, used as a signal by which a friend is known from an enemy, or a person who has a right to pass the watch from one who has not; a countersign; a password.
(n.) A sentiment or motto; esp., one used as a rallying cry or a signal for action.
Example Sentences:
(1) He poses a far greater risk to our security than any other Labour leader in my lifetime September 12, 2015 “Security” appears to be the new watchword of Cameron’s government – it was used six times by the prime minister in an article attacking Corbyn in the Times late last month, and eight times by the chancellor, George Osborne, in an article published in the Sun the following day.
(2) Individualism – the assertion of every person’s claim to maximised private freedom and the unrestrained liberty to express autonomous desires … became the leftwing watchword of the hour.” The result was an astonishing liberation: from millennia of social, gender and sexual control by powerful, mostly elderly men.
(3) That will be the watchword of David Cameron’s Tories next week.
(4) The mantra of "fewer, better" will become a watchword across the BBC's output – as will collaboration with other broadcasters: a reinvented Call The Midwife is relocated to the Lower East Side of Manhattan.
(5) Instead of being held captive to words such as "rational suicide" or "euthanasia", what is needed is an acceptance of more contemporary watchwords such as autonomy and self-determination.
(6) The watchwords are suitably commercial: “strategic commissioning”, “market-making”, and “brand protection”.
(7) In private, the watchword remains "Hamburger Hill", the brutal 80s Vietnam war film named because Vietnamese bullets turned human flesh into hamburger meat.
(8) Indeed, "choice and control" have been watchwords espoused by politicians of all hues since the mid-90s.
(9) It would seem unlikely that Germany would countenance any of these measures in any way, and for that reason caution remains the watchword.
(10) Count the number of times you hear the chancellor and prime minister say “security”, their watchword and their excuse for all they mean to do, from brutal spending cuts to purchasing an armoury of foreign military hardware.
(11) Shopping will change beyond recognition, with “ hyper showrooming ” the watchword – shops will become “emotional destinations”, products hidden away behind digital screens, and heavily tailored to individual taste, guided by algorithms and ultimately our own prior behaviour.
(12) Patience, not aggression, has been the watchword of law enforcement ever since.
(13) Ruthlessness has become the network owners' watchword now, because the mobile phone boom they have ridden for nearly 20 years is over.
(14) Caution was the watchword, and both coaches were unapologetic.
(15) Security” is Cameron’s current watchword – “for families, for the country” – but there is no security for families forever on short private leases.
(16) The traditional core service in most places is essential support with personal care for people with long-term health and care needs, where the watchword is continuity of relationships, reliability and dignity.
(17) "Reform" was their watchword and they had one new article of faith: that the best proof of any leader's bona fides was the habit of loudly defining themselves against their own side.
(18) Except for a few tweaks that generally resonate more at home than with Germany's European and international partners (such as requiring the government to be more transparent concerning arms exports to autocratic regimes), continuity and caution will remain the watchwords of German foreign and security policy.
(19) One understanding holds "Benghazi" as a watchword for government malfeasance.
(20) "[We] propose a 'new union for fairness' whose watchwords are power-sharing, diversity and constitutional partnership, replacing the old union of centralisation, uniformity and Westminster's undivided sovereignty."