What's the difference between impair and weaken?

Impair


Definition:

  • (v. t.) To make worse; to diminish in quantity, value, excellence, or strength; to deteriorate; as, to impair health, character, the mind, value.
  • (v. t.) To grow worse; to deteriorate.
  • (a.) Not fit or appropriate.
  • (n.) Diminution; injury.

Example Sentences:

  • (1) Clinical signs of disease developed as early as 15 days after transition to the experimental diets and included impaired vision, decreased response to external stimuli, and abnormal gait.
  • (2) The various evocational changes appear to form sets of interconnected systems and this complex network seems to embody some plasticity since it has been possible to suppress experimentally some of the most universal evocational events or alter their temporal order without impairing evocation itself.
  • (3) The CHI patients were impaired overall on the FTE but not the CTE.
  • (4) We studied the effects of the localisation and size of ischemic brain infarcts and the influence of potential covariates (gender, age, time since infarction, physical handicap, cognitive impairment, aphasia, cortical atrophy and ventricular size) on 'post-stroke depression'.
  • (5) Changes in renal renin levels after the administration of glycerol were not significant, although lower renal renin values were consistently found in rabbits with more severe impairment of renal function.
  • (6) These findings suggest that aerosolization of ATP into the cystic fibrosis-affected bronchial tree might be hazardous in terms of enhancement of parenchymal damage, which would result from neutrophil elastase release, and in terms of impaired respiratory lung function.
  • (7) There was no correlation between disturbed gastric clearance, impaired gall bladder contraction, and prolonged colonic transit time in the patients with cardiovascular autonomic neuropathy nor was there a correlation between any disturbed motor function and age or duration of diabetes.
  • (8) No biologic investigation of the hemostatic impairment could be performed under the emergency conditions of this field study.
  • (9) Two hours after the administration, the combinations of ethanol plus diazepam and ethanol plus meclophenoxate impaired significantly the number of necessary repetitions.
  • (10) The effect of dietary fibre digestion in the human gut on its ability to alter bowel habit and impair mineral absorption has been investigated using the technique of metablic balance.
  • (11) The Test of Motor Impairment (TOMI) was used to select 12 children with a Developmental Coordination Disorder (DCD) and 12 age-matched controls.
  • (12) Patients with MID, but not those with DAT, exhibited correlations between enlargement of the third and lateral ventricles and severity of cognitive impairment.
  • (13) ACTH 4-10 appeared to slightly impair selective attention as indicated by AEP responses.
  • (14) After large bowel removal, there was impaired glucose tolerance and attenuated plasma insulin secretion.
  • (15) Only the aged treatment group demonstrated significantly impaired performance.
  • (16) Case 3 was that of a 70-year-old female with left impaired vision and frontal headache.
  • (17) This review focused on the methods used to identify language impairment in specifically language-impaired subjects participating in 72 research studies that were described in four journals from 1983 to 1988.
  • (18) Our results clearly indicate impaired carbohydrate metabolism in potassium-depleted rats.
  • (19) One subject had developed renal failure, while the other two continued to function at a high level with no evidence of cognitive decline or psychiatric or neurologic impairment.
  • (20) The subscales Depression, Inactivity and Physical Impairment could not be identified as a factor.

Weaken


Definition:

  • (v. t.) To make weak; to lessen the strength of; to deprive of strength; to debilitate; to enfeeble; to enervate; as, to weaken the body or the mind; to weaken the hands of a magistrate; to weaken the force of an objection or an argument.
  • (v. t.) To reduce in quality, strength, or spirit; as, to weaken tea; to weaken any solution or decoction.
  • (v. i.) To become weak or weaker; to lose strength, spirit, or determination; to become less positive or resolute; as, the patient weakened; the witness weakened on cross-examination.

Example Sentences:

  • (1) Now, as the Senate takes up a weakened House bill along with the House's strengthened backdoor-proof amendment, it's time to put focus back on sweeping reform.
  • (2) The use of functional test with the ACTH administration demonstrated organic affection of the CNS to sharply aggravate the weakening and even the exhaustion of the functional reserves of the glomerular and the reticular zones of the adrenal cortex developing during thyrotoxicosis, and also the reserve possibilities of the sympathico-adrenal system.
  • (3) If Lagarde had been placed under formal investigation in the Tapie case, it would have risked weakening her position and further embarrassing both the IMF and France by heaping more judicial worries on a key figure on the international stage.
  • (4) The stronger negative potentials may weaken electrostatic receptor interactions and, thereby, cause the trans(E)-isomers to be less active than cis(Z)-isomers.
  • (5) We found that the closer location of Mg2+ to the beta-phosphoryl group than to the alpha- or gamma-phosphoryl group was effective in weakening the P-O bond at which the cleavage of ATP catalyzed by most enzymes takes place.
  • (6) Extracellular potassium increases this component of the potassium current as a result of weakening of its inactivation.
  • (7) Moreover, the effect of its administration gradually weakens with repeating of the stress inducing experiment, and propiopromazine itself may act as a stress inducing factor.
  • (8) He was accused of disrespecting the FA Cup with such a weakened team but he mounted a strong defence, referencing the club’s seven injuries that have left him with only 13 fit senior outfield players.
  • (9) sec.-1); b) an enhancement of fast (15-25 Hz) oscillations in the cortical spontaneous electrical activity and weakening and modification of the effects of the blockader of synthesis of MA-alpha-methyl-dioxiphenylalanine.
  • (10) The muscle weakening procedures by the traditional recession should be avoided.
  • (11) Repeated flashes above a few per second do not so much cause fatigue of the VEPs as reduce or prevent them by a sustained inhibition; large late waves are released as a rebound excitation any time the train of flashes stops or is delayed or sufficiently weakened.
  • (12) Levin and Merkley said Wall Street has successfully managed to weaken the rule.
  • (13) Any process which weakens the cartilaginous endplate or the subchondral cancellous bone may predispose to the development of Schmorl's nodes.
  • (14) The dumping-syndrome is a severe complication of gastric surgery after operations which destroy or weaken the sphincter mechanism of the pylorus.
  • (15) The destabilization of the red cell membrane skeleton in the presence of crude iHCR is caused by release of hemin, which lowers the stability of membrane skeleton by weakening the spectrin-protein 4.1-actin interaction.
  • (16) We therefore conclude that in postrigor muscles, paratropomyosin is released from the A-I junction region following the increase in the sarcoplasmic calcium ion concentration to 10(-4) M, and then binds to thin filaments, which results in weakening of rigor linkages formed between actin and myosin.
  • (17) Companies like Origin and EnergyAustralia are pushing to weaken the target not, as they like to claim, because that would be good for customers, but because a weaker target is better for their bottom line,” Connor said.
  • (18) The centrally generated ;effort' or direct voluntary command to motoneurones required to lift a weight was studied using a simple weight-matching task when the muscles lifting a reference weight were weakened.
  • (19) One possibility is that the membrane of dystrophic muscle is weakened and becomes leaky to Ca2+.
  • (20) David Cameron thought that the SNP would weaken Labour north of the border.