What's the difference between obviate and preclude?

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.

Preclude


Definition:

  • (v.) To put a barrier before; hence, to shut out; to hinder; to stop; to impede.
  • (v.) To shut out by anticipative action; to prevent or hinder by necessary consequence or implication; to deter action of, access to, employment of, etc.; to render ineffectual; to obviate by anticipation.

Example Sentences:

  • (1) However, the variation in samples, even from among individual animals that had survived challenge, was so great that it precludes the use of the macrophage migration technique as a routine standard assay procedure for immunity.
  • (2) However, hemodynamic effects of the compound, suggesting an oxygen sparing action, did not preclude the antifibrillatory effectiveness.
  • (3) Since group therapy and sensory stimulation over a relatively short period can result in clinical and testable improvement, the diagnosis of "chronic brain syndrome" in the elderly should not be allowed to preclude the provision of appropriate psychiatric therapy.
  • (4) Positive biopsy findings may preclude transplantation.
  • (5) These findings may preclude the use of controlled studies on early synovectomy using the non-operated hand as a control in a long-term assessment of X-ray progression.
  • (6) Immunoassay of semen samples for CTX were not diagnostic, but the sensitivity and timing of the test employed may have precluded detection of small quantities of the toxin.
  • (7) These were all mild or moderate in severity and did not preclude continued administration of the study drug.
  • (8) Moreover, reexamination of the original X-ray maps reported in 1968 and thought to preclude a Tyr-248-Zn interaction now leads to the conclusion that in up to 25 per cent of the molecules in the crystals ttyr-248 interacts with the active site zinc atom (W.D.
  • (9) Nowadays, conventional cholecystectomy remains indicated when laparoscopy is contra-indicated, notably in cases with tight peritoneal adhesions precluding laparoscopy.
  • (10) However, this does not preclude the need for appropriately ex vivo-handled specimens for monitoring isepamicin concentrations in plasma to ensure therapeutic efficacy and prevent toxicity.
  • (11) The striatal dopaminergic input was extensively destroyed beforehand to preclude the possibility of reinnervation of the striatum by endogenous dopaminergic neurons.
  • (12) Rapidly progressive autolytic changes preclude the meaningful morphological assessment of hypoxic change at the ultrastructural level.
  • (13) The lack of data on the fertilizing capacity of sperm in GIFT procedures in cases of male infertility is a real disadvantage and currently precludes the management of severe male infertility with this method.
  • (14) Superficial muscle necrosis is a complication of this operation but has not precluded its usefulness.
  • (15) In vitro attempts to demonstrate local activated macrophages in the foot pads of M. leprae infected mice failed, but, because of the technical problems encountered, do not preclude their presence.
  • (16) In some cases with relatively minimal vascular changes the prognosis was poor, whereas heavy cellular infiltreate without vessel damage did not necessarily preclude functional recovery.
  • (17) In aortic stenosis: a) severe ventricular dysfunction does not preclude the surgical treatment; b) the actuarial analysis suggests that EF less than 50% determines worse prognosis and always occurs with decreased CO; c) the excellent evolution of the asymptomatic patients does not generalize the surgical treatment in this phase; d) the incidence of the sudden death was not high after the surgical treatment; e) patients with pre-operative left ventricular dysfunction had greater mortality due to heart failure, than patients with normal left ventricular function; f) despite of the morbid events our results confirm the real benefit of the surgical treatment in the aortic stenosis.
  • (18) Receptor cells with cilia were observed, and although the olfactory system undergoes further differentiation during pouch life and although the olfactory epithelium and bulb of the newborn differs from that of the adult, these facts do not preclude the ability of the newborn to detect smell.
  • (19) The Likud, led by Binyamin Netanyahu, is committed to permanent Israeli control over most of the West Bank, and this precludes the possibility of peace with the Palestinians.
  • (20) PAC was administered monthly until disease progression or toxicity precluded additional therapy.