What's the difference between persistent and tenacious?

Persistent


Definition:

  • (a.) Inclined to persist; having staying qualities; tenacious of position or purpose.
  • (a.) Remaining beyond the period when parts of the same kind sometimes fall off or are absorbed; permanent; as, persistent teeth or gills; a persistent calyx; -- opposed to deciduous, and caducous.

Example Sentences:

  • (1) Without medication atypical ventricular tachycardia develops, in the author's opinion, most probably when bradycardia has persisted for a prolonged period.
  • (2) If the method was taken into routine use in a diagnostic laboratory, the persistence of reverse passive haemagglutination reactions would enable grouping results to be checked for quality control purposes.
  • (3) We considered the days of the disease and the persistence of symptoms since the admission as peculiar parameters between the two groups.
  • (4) The remaining case had a calibre persistent submucosal artery within the caecum that was found incidentally in a resection specimen.
  • (5) The difference in HDL and HDL2 cholesterol concentrations between the MI+ and MI- groups or between the MI+ and CHD- groups persisted after adjustment by analysis of covariance for the effect of physical activity, alcohol intake, obesity, duration of diabetes, and glycemic control.
  • (6) Since the advance and return of sperm inside the tubes could facilitate the interaction of sperm with secretions participating in its maturation, the persistent infertility after vasectomy could be related to the contractile alteration that follows the excessive tubal distention.
  • (7) An experimental Anaplasma marginale infection was induced in a splenectomized mule deer (Odocoileus hemionus hemionus) which persisted subclinically at least 376 days as detected by subinoculation into susceptible cattle.
  • (8) TR was classified as follows: severe (massive systolic opacification and persistence of the microbubbles in the IVC for at least 20 seconds); moderate (moderate systolic opacification lasting less than 20 seconds); mild (slight systolic opacification lasting less than 10 seconds); insignificant TR (sporadic appearance of the contrast medium into the IVC).
  • (9) They had learned through hard experience what Frederick Douglass once taught -- that freedom is not given, it must be won, through struggle and discipline, persistence and faith.
  • (10) Short incubations with heparin (5 min) caused a release of the enzyme into the media, while longer incubations caused a 2-8-fold increase in net lipoprotein lipase secretion which was maximal after 2-16 h depending on cell type, and persisted for 24 h. The effect of heparin was dose-dependent and specific (it was not duplicated by other glycosaminoglycans).
  • (11) The first patient, an 82-year-old woman, developed a WPW syndrome suggesting posterior right ventricular preexcitation, a pattern which persisted for four months until her death.
  • (12) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
  • (13) Channel activation persists through the process of platelet isolation and washing and is manifested in higher measured values of [Ca2+]cyt and [Ca2+]dt in the "resting state."
  • (14) Gastro-intestinal surgery is only indicated if haemorrhage persists after a period of observation.
  • (15) Psychiatric morbidity is further increased when adjuvant chemotherapy is used and when treatment results in persistent arm pain and swelling.
  • (16) A newborn presenting with persistent umbilical stump bleeding should be screened for factor XIII deficiency when routine coagulation tests prove normal.
  • (17) This competence persists over the eight measurement points.
  • (18) To investigate the possibility that an abnormality of gastric emptying exists in duodenal ulcer and to determine if such an abnormality persists after ulcer healing, scintigraphic gastric emptying measurements were undertaken in 16 duodenal ulcer patients before, during, and after therapy with cimetidine; in 12 patients with pernicious anemia, and in 12 control subjects.
  • (19) Thus it appears that a portion of the adaptation to prolonged and intense endurance training that is responsible for the higher lactate threshold in the trained state persists for a long time (greater than 85 days) after training is stopped.
  • (20) persisted and was more abnormal in 23% of the cases including specific tracings in 37%.

Tenacious


Definition:

  • (a.) Holding fast, or inclined to hold fast; inclined to retain what is in possession; as, men tenacious of their just rights.
  • (a.) Apt to retain; retentive; as, a tenacious memory.
  • (a.) Having parts apt to adhere to each other; cohesive; tough; as, steel is a tenacious metal; tar is more tenacious than oil.
  • (a.) Apt to adhere to another substance; glutinous; viscous; sticking; adhesive.
  • (a.) Niggardly; closefisted; miserly.
  • (a.) Holding stoutly to one's opinion or purpose; obstinate; stubborn.

Example Sentences:

  • (1) The insurgency is still raging, and the president will have to inspire the security forces, choose generals to lead the fight, and plot tactics to beat a tenacious and experienced enemy.
  • (2) RSL trying to get their own flowing passing game going now, but the Timbers looking tenacious in midfield to break it up.
  • (3) Another factor is the decline of caste, the tenacious Indian social hierarchy which still determines the status of hundreds of millions.
  • (4) A tenacious Anabaena epiphyte was also discovered inhabiting the surfaces of root nodules.
  • (5) His family belonged to the Ghanchi caste, low down on the tenacious social hierarchy that still often defines status in India, and had little money.
  • (6) Another facilitating factor which is discussed is that blowing the nose may catch tenacious mucus which has partly passed through the ostium by the ciliary activity in the sinus.
  • (7) Malta continued to defend tenaciously after half-time and Italy struggled to create openings, despite their overwhelming dominance.
  • (8) However, attempts to cultivate M phi for morphological and functional studies have often been compromised because M phi adhere rapidly and tenaciously to cultureware.
  • (9) The exudate, apparent as early as 48 hours after inoculation, drained from the cervix as a tenacious, mucopurulent discharge for several days, then rapidly disappeared.
  • (10) Thirty-four patients, 21 male and 13 female, with chronic asthma and tenacious mucoid expectoration were studied regarding clinical parameters, PEF, airway resistance and sputum viscosity measured according to the n.m.r.
  • (11) Mark Lewis and Charlotte Harris, two tenacious solicitors, were followed around, together with their children.
  • (12) The cholla cacti are particularly tenacious in the manner in which the spines stay embedded in the skin.
  • (13) The action of complement is considered in terms of a more tenacious bond formed between effector and target cells.
  • (14) Two immunologically distinct proteins of 55 and 26 kd, which are tenaciously, but noncovalently associated with Oxytricha macronuclear DNA termini, have been purified.
  • (15) So they fought tenaciously, first over prices and then over privatisation.
  • (16) But the Justice Department attorney Ron Wiltsie, who impugned Xenakis’s credentials in tenacious cross-examination, said Dhiab had committed “five assaults since April 2014”.
  • (17) The observation that glucose phosphates bind to the Li+ complex of phosphoglucomutase some 900 times more tenaciously than to the corresponding Mg2+ complex could provide a partial rationale for the lack of reactivity of the Le+ form of the enzyme.
  • (18) "For rural areas, farmers, dalits (those at the bottom of India's tenacious social hierarchy), weak and the pained, this government is for them.
  • (19) [Small Talk, like the all-action investigative journalist that it is, tenaciously refuses to let the question go] And you're other half, she's an Irish pool international?
  • (20) Isis will then be reduced to what it once was: a very brutal and tenacious Iraqi militant organisation.