(v. t.) To fall upon with force; to assail, as with force and arms; to assault.
(v. t.) To assail with unfriendly speech or writing; to begin a controversy with; to attempt to overthrow or bring into disrepute, by criticism or satire; to censure; as, to attack a man, or his opinions, in a pamphlet.
(v. t.) To set to work upon, as upon a task or problem, or some object of labor or investigation.
(v. t.) To begin to affect; to begin to act upon, injuriously or destructively; to begin to decompose or waste.
(v. i.) To make an onset or attack.
(n.) The act of attacking, or falling on with force or violence; an onset; an assault; -- opposed to defense.
(n.) An assault upon one's feelings or reputation with unfriendly or bitter words.
(n.) A setting to work upon some task, etc.
(n.) An access of disease; a fit of sickness.
(n.) The beginning of corrosive, decomposing, or destructive action, by a chemical agent.
Example Sentences:
(1) In attacking the motion to freeze the licence fee during today's Parliamentary debate the culture secretary, Andy Burnham, criticised the Tory leader.
(2) The major treatable risk factors in thromboembolic stroke are hypertension and transient ischemic attacks (TIA).
(3) In January, Paris taxi drivers attacked an Uber car transporting two passengers from Charles de Gaulle airport.
(4) The manufacturers, British Aerospace describe it as a "single-seat, radar equipped, lightweight, multi-role combat aircraft, providing comprehensive air defence and ground attack capability".
(5) She had three attacks of severe migrainous headache accompanied with nausea and vomiting within three weeks.
(6) 2.39pm BST The European Union called for a "thorough and immediate" investigation of the alleged chemical attack.
(7) Lactate-induced anxiety and symptom attacks without panic were seen more often in the groups with panic attacks, but a full-blown panic attack was provoked in only four subjects, all belonging to the groups with a history of panic attacks.
(8) A 45-year-old mother of four, named as Hediye Sen, was killed during clashes in Cizre, while a 70-year-old died of a heart attack during fighting in Silopi, according to hospital sources.
(9) 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.
(10) This attack can take place during organogenesis, during early differentiation of neural anlagen after neural tube closure or during biochemical differentiation of the brain.
(11) For the second propositus, a woman presenting with abdominal and psychiatric manifestations, the age of onset was 38 years; the acute attack had no recognizable cause; she had mild skin lesions and initially was incorrectly diagnosed as intermittent acute porphyria; the diagnosis of variegate porphyria was only established at the age of 50 years.
(12) My thoughts are with all those who have lost loved ones or been injured in this barbaric attack.
(13) The charges against Harrison were filed just after two white men were accused of fatally shooting three black people in Tulsa in what prosecutors said were racially motivated attacks.
(14) Treatment with salbutamol inhalation had a beneficial effect on the duration of their adynamic attacks.
(15) Diabetic retinopathy (an index of microangiopathy) and absence of peripheral pulses, amputation, or history of myocardial infarction, stroke, or transient ischemic attacks (as evidence of macroangiopathy) caused surprisingly little increase in relative risk for cardiovascular death.
(16) The remain side have already targeted Johnson’s credibility in attacks that the Brexiters believe were orchestrated by Downing Street.
(17) I first saw them live at the location of the terror attack, Manchester Arena – then the MEN – aged 15, a teen at a gig with my friends, as many of the Grande’s fans were.
(18) Maguire's colleagues rushed to her side, some administering first aid while others held her attacker, witnesses said.
(19) But late last month, Amisom pushed them out of Afgoye, a strategic stronghold 30km from Mogadishu, where Amisom officials say the militants used to manufacture explosives used in attacks on the capital.
(20) Repeated transient ischemic attacks in the same territory with minimal lesions on arteriography and non-homogeneous plaque on duplex scan; 2.
Challenge
Definition:
(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.