(n.) A dark, obscure, or inexplicable saying; a riddle; a statement, the hidden meaning of which is to be discovered or guessed.
(n.) An action, mode of action, or thing, which cannot be satisfactorily explained; a puzzle; as, his conduct is an enigma.
Example Sentences:
(1) The nature of the putative autoantigen in Graves' ophthalmopathy (Go) remains an enigma but the sequence similarity between thyroglobulin (Tg) and acetylcholinesterase (ACHE) provides a rationale for epitopes which are common to the thyroid gland and the eye orbit.
(2) The role of growth hormone (GH) and the related placental lactogens in implantation and subsequent embryonic and fetal development is an enigma.
(3) The exact association between psoriasis and arthritis remains an enigma.
(4) And then there is the great enigma of that involuntary separation inflicted by the death of those without whom we would never have wanted to live.
(5) An apparent enigma during platelet aggregation is that increased glycogenolysis occurs despite a fall in cyclic AMP levels; Activation by a classical cascade is therefore unlikely, and an alternative stimulus for phosphorylase a formation was sought.
(6) This triad is currently an enigma in the field of internal medicine.
(7) Rectal carcinoma remains an enigma to surgical and medical oncologists.
(8) Most of the known central actions of angiotensin II, for example the regulation of blood pressure and of electrolyte and water balance, seem to be mediated by the AT1 receptor, while the role of the AT2 receptor is still an enigma.
(9) What they say "You are an enigma wrapped in a riddle nestled in a sesame seed bun of mystery" – Stephen Colbert
(10) We believe that the "missing pathway" for factor XI activation remains an enigma that warrants further investigation.
(11) He, of course, disclaimed his commitment, telling an American admirer that he was "a person who prefers life to art, and who knows it is a far finer thing to be in love…" The record of his creativity suggests the opposite, only adding to the aura of enigma that still surrounds him.
(12) Against this background the present study was performed, and it has been shown that the resolution to the enigma is that there are two different populations of bipolar cells in the rat visual cortex.
(13) The biologic background to the clinical behavior of these metastasizing tumors remains an enigma.
(14) The author argues that the similarity of the Bushman trance state, kia and that of drug-induced altered states of consciousness has been paid too little attention in the research, and that an enigma currently exists with regard to the degree to which plant drugs may have influenced the !Kung trance phenomenon and healing beliefs.
(15) In many ways the problem of diaphragmatic hernia is as much of an enigma to today's physician-scientist as it was to Bochdalek in the nineteenth century.
(16) The treatment of keloids continues to be an enigma to the surgeon and the patient as well.
(17) And we need to declare war on them.” The rhetoric injected renewed urgency into the effort to unlock the enigma of a couple who had lived quietly and privately with their six-month-old daughter.
(18) Facial palsy is a distressing nonfatal disorder that creates an emotional crisis for the patient and often a therapeutic enigma for the physician.
(19) The function of the third one called the tissue type is still an enigma.
(20) A variety of pharmacologic manipulations were employed to help solve this enigma.
Equivocal
Definition:
(a.) (Literally, called equally one thing or the other; hence:) Having two significations equally applicable; capable of double interpretation; of doubtful meaning; ambiguous; uncertain; as, equivocal words; an equivocal sentence.
(a.) Capable of being ascribed to different motives, or of signifying opposite feelings, purposes, or characters; deserving to be suspected; as, his actions are equivocal.
(a.) Uncertain, as an indication or sign; doubtful.
(n.) A word or expression capable of different meanings; an ambiguous term; an equivoque.
Example Sentences:
(1) However six equivocal studies were observed in profoundly jaundiced patients with bilirubin levels above 400 mumol l-1 due to difficulties in differentiating extrahepatic obstruction from severe intrahepatic cholestasis.
(2) The great clinical value of the procedure is shown by the following findings:X-ray-negative lesions--including 2 cases of carcinoma--were found in 35 percent of the cases, radiologically demonstrated lesions could be defined more precisely in 18 percent, and the presence of colonic lesions could be ruled out in 11 percent in spite of equivocal X-ray findings.
(3) Differentiation of thrombi from slow flow in the pulmonary arteries, sometimes observed in the presence of pulmonary arterial hypertension, can be equivocal.
(4) Conversely, the presence of unchanged intracellular or intraluminal O-acetyl sialic acid may help to exclude a diagnosis of malignancy in equivocal cases.
(5) Interpretation of scans was equivocal in another 18% of patients due to undetectable ascension of the tracer to the uterus.
(6) Endpoint events were also more common in patients with an abnormal (positive or equivocal) preoperative exercise test response than in those with a negative response (27% vs 14%); however, preoperative exercise results were not statistically significant independent predictors of cardiac risk.
(7) Radiographic appearances of tumours of the paranasal sinus are often equivocal.
(8) Of these 65 donors, 46 had normal studies, nine had pericardial effusions, five had mild septal hypokinesia with otherwise normal function, four had equivocal mitral valve prolapse, and only one heart could not be visualized.
(9) Different procurement systems have already made England a slightly "different country" for Scottish suppliers, many of whom are more concerned about Cameron's equivocal attitude towards the European Union.
(10) Tumor rates are given for each positive or equivocal effect observed in 67 studies judged to show carcinogenic effects and in the 17 studies that show equivocal effects.
(11) Conflicting and equivocal data have characterized self-reports of depression and other affects in alcoholics.
(12) None of the lesions with histologic features equivocal for HPV infection had detectable HPV DNA by in situ hybridization, though some did contain HPV DNA sequences as ascertained by filter hybridization analysis.
(13) While it is unlikely that Zardari's government had any direct link to the Mumbai attacks, there is every reason to believe that its failure effectively to crack down on the country's jihadi network, and its equivocation with figures such as Hafiz Muhammad Syed, means that atrocities of the kind we saw last week are likely to continue.
(14) Avascular lesions were the main cause for equivocal or incorrect angiographic diagnoses.
(15) A regular histologic examination was equivocal for evidence of HPV infection in four of the seven cases.
(16) No changes in regional contractility occurred with propranolol except for a minimal increase in hypokinesis in one patient at each dosage and equivocal development of a new area of slight hypokinesis in one patient and minimal apex of dyskinesis in another at the higher dosage.
(17) Enterobacteriaceae that yield zones of inhibition equal to or greater than 20 mm in diameter around 50-mug discs of carbenicillin are designated as sensitive to the drug; isolates that yield zones measuring from 18 to 19 mm in diameter are reported as of equivocal (intermediate) susceptibility to the drug, whereas those enterobacterial isolates that are characterized by zones of inhibition of 17 mm or less in diameter are interpreted as resistant to carbenicillin.
(18) Of the 47 compounds that were positive or equivocal in the alkaline unwinding assay, only carbon tetrachloride and prednisolone were negative in the mouse lymphoma assay, while 12 of the 19 compounds that were negative in the alkaline unwinding assay were positive in the mouse lymphoma assay.
(19) Cavernography should be used in the equivocal cases without hematuria or signs of fracture.
(20) It was observed that 2,4-D, dimecron, and vitavax were clastogenic, but the results obtained with benomyl and monocrotophos were equivocal.