What's the difference between obviate and vitiate?

Obviate


Definition:

  • (v. t.) To meet in the way.
  • (v. t.) To anticipate; to prevent by interception; to remove from the way or path; to make unnecessary; as, to obviate the necessity of going.

Example Sentences:

  • (1) The phenylalanine model allows the rapid assessment of whole body and muscle protein turnover from plasma samples alone, obviating the need for measurement of expired air CO2 production or enrichment.
  • (2) In this series, the association between the anomalous ductal insertion and biliary tract disease cannot be established, since the method of patient selection obviates any epidemiologic consideration.
  • (3) The intracellular localization of tachyzoites facilitated diagnosis by obviating potential confusion of extracellular tachyzoites with cellular debris or platelets.
  • (4) Still, there are some aspects of Palin’s channel to recommend it to the devoted movement conservative that isn’t necessarily already a fan of hers – especially its obviating the need to resort to Palinology.
  • (5) Thorough monitoring during surgery, careful selection of patients, and close communication between the surgeon and anesthesiologist permit safe anesthesia, can decrease operating time, and usually obviate the need for transfusions.
  • (6) Cotrel-Dubousset instrumentation (CDI) has been gaining popularity in scoliosis surgery because of their improved rigidity which can obviate the need for a brace in most cases.
  • (7) Postoperative radiotherapy appeared to be effective in obviating local recurrence in patients with adenoid cystic carcinoma of the trachea.
  • (8) Dosage adjustments usually obviate unwanted effects except for paradoxical reactions such as hostility.
  • (9) Using nuclear runoff transcription assays we demonstrated that alpha interferon-mediated induction of transcription of four mRNAs in HeLa monolayer cells needed ongoing protein synthesis and that such a need could be obviated by pretreating the cells with gamma interferon which, by itself, did not induce transcription of these mRNAs.
  • (10) It obviates the need for excision in patients who fulfill the aforementioned criteria.
  • (11) In summary, endoscopic dilatation for postgastroplasty strictures is a useful and effective technique, obviating the need for operative revision in the majority of patients; however, when the stenosis is associated with channel angulation, dilatation is almost uniformly unsuccessful.
  • (12) To obviate this problem, we have covalently attached deferoxamine to high molecular weight carbohydrates such as dextran and hydroxyethyl starch.
  • (13) Serum components inhibit DNA polymerase, thereby obviating direct detection of serum viral DNA sequences by the polymerase chain reaction (PCR).
  • (14) Sources say Elisabeth, who turned 44 on Wednesday, has no desire to leave Britain and believes her father can carry on for at least another 10 years, obviating any need for a succession decision.
  • (15) Gastric resection may still be unavoidable as a diagnostic procedure in a minority of cases and may represent the primary therapeutic procedure in clinically assessed early-stage and low-risk patients, but it cannot be considered mandatory whenever possible merely for debulking purposes or to obviate possible perforation or hemorrhage.
  • (16) The use of a malleable curved disposable suction cautery for the control of any persistent bleeding at the conclusion of adenoidectomy in over 1000 cases has prevented any primary postoperative hemorrhages from the nasopharynx, and obviated the need for post-nasal packing.
  • (17) These responses can be obviated by intravascular volume expansion.
  • (18) In older patients the finding could be misinterpreted as evidence of extracranial cerebrovascular disease, but clinical considerations should obviate unnecessary neuroradiological diagnostic procedures.
  • (19) Elective caesarean section at 38 weeks' gestation may obviate the problem, since it prevents trauma during vaginal delivery but it will not eliminate neurological sequelae in those infants who have already suffered antenatal intracranial bleeding, an entity now well described in these fetuses.
  • (20) Timely intervention by other diagnostic modalities may obviate the consideration of chemotherapy in cases where there are no liver metastases.

Vitiate


Definition:

  • (v. t.) To make vicious, faulty, or imperfect; to render defective; to injure the substance or qualities of; to impair; to contaminate; to spoil; as, exaggeration vitiates a style of writing; sewer gas vitiates the air.
  • (v. t.) To cause to fail of effect, either wholly or in part; to make void; to destroy, as the validity or binding force of an instrument or transaction; to annul; as, any undue influence exerted on a jury vitiates their verdict; fraud vitiates a contract.

Example Sentences:

  • (1) These conclusions vitiate previous explanations for gal3 associated long-term adaptation and noninducible phenotypes.
  • (2) Thus it is concluded that any solution or drug which needs to be injected should ideally be used at 37 degrees C, as temperature lower or higher than that may vitiate the results.
  • (3) Their review is marred by numerous errors which vitiate the potency estimates.
  • (4) Antibiotic therapy prior to hospitalization did not vitiate the validity of the test.
  • (5) The following is concluded: (1) diagnosis of folate and B12 deficiency based on SF, RCF and serum B12 is vitiated in HBT and needs a therapeutic trial; (2) iron overload of a magnitude indicated by TS greater than 50% can aggravate anemia in HBT.
  • (6) The technique is simple but the results may be vitiated by the minutae of preservation, of taking or of staining the cells which are described.
  • (7) Some of the previous results (Ascenzi et al., 1985) indicating a high hemoglobin titer were +vitiated because of an unexpected cross-reactivity of bone extracts with the hemoglobin-unreactive fraction of the antiserum.
  • (8) The authors have classified the various fractures of the pelvis in children by analysing the elements of functional prognosis of these lesions based on the types of fractures and on the particular factors of vitiation reported in the literature, consisting of series which are too short to be truly demonstrative.
  • (9) While the physiological role of these proteins remains to be determined, their presence in gonadal extracts or fluids vitiates assessment of FSH within the gonad by RIA using antiserum against hFSH.
  • (10) It was also found that the protective effect is vitiated by the concurrent administration of paraaminobenzoic acid.These studies indicate a need for further assessment of the antimalarial value of sulfones and sulfonamides, both alone and in combination with other drugs, for prevention and cure.
  • (11) In particular, the extent to which the generality of the model is vitiated by its ignoring the effect of mineralisation on strength was tested.
  • (12) These conclusions are not vitiated by differences in the number of nuclei within capillaries or in satellite cells, by differences in nuclear length or by variation in the degree to which fibres are contracted.
  • (13) Infection or ileal conduit urine vitiate the result as they produce high CEA levels in the urine in the absence of any neoplastic disease.
  • (14) It is argued that despite continued methodological improvements, subjects in the conditions of greater complexity may have found it sufficient to rotate only partial images, thereby vitiating the prediction.
  • (15) The failed bid by prime minister Antonis Samaras to throw off the yoke of international supervision by prematurely exiting the bailout programme has also vitiated his fragile government’s appeal.
  • (16) An investigation of the risky shift phenomenon revealed that an understanding of probability did not vitiate the shift toward greater risk.
  • (17) The several factors which do not depend directly on the orifice area or on the forward stroke volume vitiate the sole use of the orifice formula in the analysis of the dynamics of aortic stenosis.
  • (18) Mutations not detectable by analysis with the method of Southern with pDP1007, may occur in the testicular determinant factor gene vitiating testicular development.
  • (19) It is believed that a.m. are an important drawback contributing to vitiate any formula on the amount of muscle surgery to be performed in patients having no possibilities of restoring normal binocular vision.
  • (20) The stimulatory effect was vitiated by cycloheximide indicating the involvement of intermediate genes in the PLP gene activation.