What's the difference between obstruct and thwart?

Obstruct


Definition:

  • (v. t.) To block up; to stop up or close, as a way or passage; to place an obstacle in, or fill with obstacles or impediments that prevent or hinder passing; as, to obstruct a street; to obstruct the channels of the body.
  • (v. t.) To be, or come, in the way of; to hinder from passing; to stop; to impede; to retard; as, the bar in the harbor obstructs the passage of ships; clouds obstruct the light of the sun; unwise rules obstruct legislation.

Example Sentences:

  • (1) We have previously shown that intratracheally instilled silica (quartz) produces both morphologic evidence of emphysema and small-airway changes, and functional evidence of airflow obstruction.
  • (2) Evaluation revealed tricuspid insufficiency, a massively dilated right internal jugular vein, and obstruction of the left internal jugular vein.
  • (3) A segment of vas deferens was transplanted to the contralateral deferens with the intention of improving treatment for certain cases of infertility caused by obstruction.
  • (4) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
  • (5) During the procedure, acute respiratory failure developed as a result of tracheal obstruction.
  • (6) Intranasal challenge of allergic subjects with the allergen to which they are sensitive rapidly produces sneezing, rhinorrhea, and airway obstruction.
  • (7) Delineation of the presence and anatomy of an obstructed, nonfunctioning upper-pole duplex system often requires multiple imaging techniques.
  • (8) Therefore, the measurement of the alpha-antitrypsin content plays the crucial part in differential diagnosis of primary (hereditary determined) and secondary (obstructive) emphysema.
  • (9) In 2 patients who had received cadaveric renal allograft, ureteral obstruction was detected six and one-half and five and one-half years after transplantation.
  • (10) Two cases are presented of bilateral ureteral obstruction and uremia due to pressure from nodes involved in disseminated lymphoma.
  • (11) The occurrence of episodes of desaturation during sleep in patients suffering from chronic airflow obstruction is well known.
  • (12) Keep it in the ground campaign Though they draw on completely different archives, leaked documents, and interviews with ex-employees, they reach the same damning conclusion: Exxon knew all that there was to know about climate change decades ago, and instead of alerting the rest of us denied the science and obstructed the politics of global warming.
  • (13) Tubal obstruction could be demonstrated in only one of these patients.
  • (14) Schistosomal obstructive uropathy was studied by clinical, laboratory epidemiologic and pathologic analysis in 155 Egyptian patients treated surgically.
  • (15) For obstruction of greater than or equal to 50% of the pulmonary vascular cross-sectional area and pulmonary hypertension thrombolytic therapy should be given and insertion of an inferior caval filter can be considered.
  • (16) Regression of the tumor occurred during an episode of mechanical small bowel obstruction.
  • (17) Comparison with 99Tc-pyrophosphate uptake in infarcted dog heart, induced by selective obstruction of a coronary artery, suggest that the 111In-labelled F(ab')2 localizes specifically in infarcted myocardium only.
  • (18) In case of biliary and pancreatic duct obstruction with pure pancreatic reflux, both oedema and inflammatory infiltrations were evident, whereas, in the presence of biliary reflux too, more serious histological features were detected.
  • (19) We recently treated a patient in whom HPVG was caused by intestinal pseudo-obstruction.
  • (20) In patients with acute exacerbations of chronic obstructive pulmonary disease, although either sympathomimetic or anticholinergic therapy provides bronchodilatation, no further benefit could be demonstrated from combination therapy.

Thwart


Definition:

  • (a.) Situated or placed across something else; transverse; oblique.
  • (a.) Fig.: Perverse; crossgrained.
  • (a.) Thwartly; obliquely; transversely; athwart.
  • (prep.) Across; athwart.
  • (n.) A seat in an open boat reaching from one side to the other, or athwart the boat.
  • (v. t.) To move across or counter to; to cross; as, an arrow thwarts the air.
  • (v. t.) To cross, as a purpose; to oppose; to run counter to; to contravene; hence, to frustrate or defeat.
  • (v. i.) To move or go in an oblique or crosswise manner.
  • (v. i.) Hence, to be in opposition; to clash.

Example Sentences:

  • (1) The disappointing weather at Easter left beaches deserted but some Britons, who were determined to enjoy the outdoors this time round, have already had their plans thwarted by the weather, taking to websites such as ukcampsite.co.uk to swap tales of woe, such as farmers calling to cancel bookings because sites were waterlogged.
  • (2) Bryan Hopkins Sheffield • David Cameron says he wants to tackle segregation between schools ( Four steps to thwart creation of ‘a barbaric realm’ , 21 July).
  • (3) As for the speaker in parliament Thura Shwe Mann, a former general, he has formed an improbable alliance with Aung San Suu Kyi, on the assumption that she might help him thwart the plans of his former cronies.
  • (4) In the recent local and European parliament elections, Labour gained 300 councillors and boosted its number of MEPs, but saw Ukip thwart its progress in key target areas, make gains in traditional party heartlands and top the European poll.
  • (5) But concerns about a slowing economy, jobs, civil rights and a lack of progress in the Kurdish peace process appear to have combined with worries that Erdoğan could assume quasi-dictatorial powers to thwart the president’s ambitions.
  • (6) A standoff between the two houses of parliament threatens to thwart a government-backed crackdown on multinational tax avoidance and a Labor-backed plan to increase tax transparency.
  • (7) So President Mujica may be thinking: "why not take the risk and embrace the possibility of becoming the first marijuana hero and the man who thwarted drug dealers?"
  • (8) The cataractogenic effect of oxyradicals, however, can be thwarted by nutritional and metabolic antioxidants such as ascorbate, vitamin E, and pyruvate.
  • (9) However, the over-riding view is that with Global's plan to buy GMG Radio outright all but thwarted, senior executives at German-owned Bauer will be breathing a sigh of relief.
  • (10) Experts say there are other arms of the federal octopus that could be squeezed in a bid to thwart Obama’s deferred action schemes, but even that would not affect the directive that tells immigration officials to focus on deporting “felons, not families”.
  • (11) The solution is for Hathaway to spend a year in sarky Manchester, where her attempts to go jogging will be thwarted by 324 days of rain, and if she so much as thinks about telling a Mancunian barmaid that she has poured those lagers fantastically well, she will swiftly learn an aloofness not taught in any American drama school.
  • (12) The report finds the company "deliberately" tried to "thwart" the 2005-6 Metropolitan police investigation into phone hacking carried out by the tabloid.
  • (13) But imperial Britain was not thwarted in any of these wars – however questionable we may now judge those conflicts to have been.
  • (14) This year the weather has tended to thwart these hopes, although after "the summer of sport" we might all need a break.
  • (15) Qerdaha is the heart of Alawite Syria , a hub for senior army officers and Shabiha, the pro-Assad militia accused of tremendous brutality in their three-year campaign to thwart the rebel uprising.
  • (16) 1.44am BST Rangers 2-1 Kings, 12:50, 2nd period Lewis stick handles towards the net but is thwarted by McDonagh, who is all over the place this game.
  • (17) The secret vote was an attempt to thwart the bill before it is put to a general vote.
  • (18) Part of the problem is procedural: that the will of the church’s parliament, the General Synod, is easily thwarted by a tiny minority of its members.
  • (19) Chloro substituents in the ring of other methoxylated benzoic acids also arrested their normal metabolism by the Nocardia: an ortho-chloro substituent thwarted both demethylation and ring-opening.
  • (20) The Liberal Democrat input is the second time they have helped thwart Gove's policies.