What's the difference between petard and retard?

Petard


Definition:

  • (n.) A case containing powder to be exploded, esp. a conical or cylindrical case of metal filled with powder and attached to a plank, to be exploded against and break down gates, barricades, drawbridges, etc. It has been superseded.

Example Sentences:

  • (1) Finally, perhaps with a bit of hindsight, we can see this as JP Morgan being hoisted by its own petard; the complexity of the derivatives it was inventing and selling made them hard to value and rate for risk.
  • (2) There are respects in which the big stores have been hoist by their own petards.
  • (3) Mel Some people have been hoist by their own petard.
  • (4) But ultimately they [the government] don’t want their record of no boats arriving to be spoiled, they want to be able to continue to say no boats have arrived for more than six months – they are hoisted on their own petard.
  • (5) If Tehran hardliners get their way, Salman will be hoisted by his own petard.
  • (6) Fifty one eyes (1st group) was burned by thermal or chemical means, mainly by lime; 40 eyes (2d group) sustained chemico-mechanical injuries caused by explosions of petards or miner's detonators.
  • (7) But ultimately they [the government] don’t want their record of no boats arriving to be spoiled, they want to be able to continue to say no boats have arrived for more than six months – they are hoisted on their own petard.” On Wednesday a spokesman for the Morrison said it was long-standing government practice not to confirm or comment on reports of individual acts of self-harm, but there was no basis to the claims of self-harm or attempted suicide.
  • (8) Newcastle United are supposed to be counterattacking specialists but they ended up hoist with their own petard as a brilliant late Sunderland break resulted in Adam Johnson ruining Alan Pardew’s Christmas.
  • (9) Netanyahu’s new problem is that – hoist with his own petard – he has now been obliged to spin both the comments he made on the even of the elections and his wider tactics during the campaign, including his pointed breach of protocol in making a speech to Congress that US president Barack Obama did not want him to make.
  • (10) Indeed, it now looks as though Germany itself, for so long the main beneficiary of the structure of the eurozone, has been hoist by its own petard.
  • (11) There is something rather beguiling about a chancellor with strategic pretensions that exceed his abilities being hoist with his own petard.
  • (12) The Indians, in particular, have become past masters at co-opting the language of equity ("equal rights to the atmosphere") in the service of planetary suicide – and leftish campaigners and commentators are hoist with their own petard.
  • (13) The irony is that the Conservative councillors who initially decided to get rid of the perceived fat cat have been hoist with their own petard.
  • (14) Yet there is no guarantee that any English or Welsh shipyard could build them, so the UK could end up hoist by own petard.

Retard


Definition:

  • (v. t.) To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder; as, to retard the march of an army; to retard the motion of a ship; -- opposed to accelerate.
  • (v. t.) To put off; to postpone; as, to retard the attacks of old age; to retard a rupture between nations.
  • (v. i.) To stay back.
  • (n.) Retardation; delay.

Example Sentences:

  • (1) It is followed by rapid neurobehavioral deterioration in late infancy or early childhood, a developmental arrest, plateauing, and then either a course of retarded development or continued deterioration.
  • (2) Low birth weight, short stature, and mental retardation were common features in the four known patients with r(8).
  • (3) It was found that preterm infants (delivered before 38 weeks of gestation) had nine times the early neonatal mortality of term infants, irrespective of growth retardation patterns.
  • (4) Instead of later renal failure and, of course, mental retardation, it was the histological features of the fetus eyes which permit to diagnose and exhibit both congenital cataract and irido-corneal angle dysgenesis.
  • (5) In the interim, sonographic studies during pregnancy in women at risk for AIDS may be helpful in identifying fetal intrauterine growth retardation and may help raise our level of suspicion for congenital AIDS.
  • (6) Three types of responses were observed: group A, no inhibition of gastric acid secretion occurred in 17 (40%) ulcer patients and in three (18%) controls (p less than 0.05); group B, inhibition of gastric acidity occurred in seven (16%) ulcer patients and in 12 (71%) controls (p less than 0.05), and group C, retarded gastric acid inhibition occurred in 19 (44%) duodenal ulcer patients and in 2 (12%) controls (p less than 0.05).
  • (7) This new way of thinking is reflected in the 1992 AAMR definition of what mental retardation is (Luckasson et al., 1992).
  • (8) Confirmation of the striking correlation between increased urinary ammonia and lowered neonatal ponderal index may afford a simple test for the identification of nutrient-related growth retardation.
  • (9) Governmental officials as well as medical scientists in Taiwan have worked hard in recent years to develop and to implement various measures, such as prenatal diagnosis and neonatal screening, to lower the incidence of hereditary diseases and mental retardation in the population.
  • (10) A lower than normal percentage of REM sleep in these patients was consistent with their retarded intellectual development, which supports current thinking that REM sleep may be a sensitive index of brain function integrity.
  • (11) Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data.
  • (12) The results also suggest that both alkali metals most probably have been delivered to the suckling pups and some of their toxic effect was retarded.
  • (13) However, patients can be taught how to retard the onset of wrinkles by avoiding unprotected sun exposure, unnecessary facial movements, and certain sleeping positions.
  • (14) Between-group responsivity differences suggest developmental retardation in term (38-42 weeks) SGA newborns, but the faster SGA latencies may reflect 'induced' acceleration in auditory neurophysiologic function.
  • (15) Fifty-one severely retarded adults were taught a difficult visual discrimination in an assembly task by one of three training techniques: (a) adding and reducing large cue differences on the relevant-shape dimension; (b) adding and fading a redundant-color dimension; or (c) a combination of the two techniques.
  • (16) Thus, the patient with asymptomatic bacteriuria and a positive FA test is at greater risk of delivering an intrauterine growth-retarded infant.
  • (17) Diffusional anisotropy of water protons, induced by nonrandom, directional barriers which hinder or retard water motion, is measurable by MRI.
  • (18) Partial duplication of the proximal part of the long arm of chromosome 5, on the other hand, is associated mainly with musculoskeletal abnormalities including muscle hypotrophy and hypotonia, scoliosis, lordosis, pectus carinatum, cubitus valgus, and genu valgum, in addition to psychomotor retardation.
  • (19) In contrast, the same concentration of isopropanol produced narcosis in the dams, retarded body-weight gain and reduced the feed intake.
  • (20) A lysosomal membrane labilizer, vitamin A, exacerbated the cartilage pathology, whereas a stabilizer, cortisone, retarded it.

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