(v. t.) To make thin or slender, as by mechanical or chemical action upon inanimate objects, or by the effects of starvation, disease, etc., upon living bodies.
(v. t.) To make thin or less consistent; to render less viscid or dense; to rarefy. Specifically: To subtilize, as the humors of the body, or to break them into finer parts.
(v. t.) To lessen the amount, force, or value of; to make less complex; to weaken.
(v. i.) To become thin, slender, or fine; to grow less; to lessen.
(a.) Alt. of Attenuated
Example Sentences:
(1) This suggested that the chemical effects produced by shock waves were either absent or attenuated in the cells, or were inherently less toxic than those of ionizing irradiation.
(2) The results are consistent with our previous suggestion that lethality for virulent SFV infection results from a lethal threshold of damage to neurons in the CNS and that attenuating mutations may reduce neuronal damage below this threshold level.
(3) Exposure to nanomolar concentrations of saralasin, an Ang II agonist, attenuated the passage of the fluorophores across the monolayers by 50-75%.
(4) Furthermore, the ability of a vasopressin antagonist to lower arterial pressure in NTS hypertensive rats was markedly attenuated by clonidine treatment.
(5) These results indicate that during IPPV the increased Pcv attenuates the pressure gradient for venous return and decreases CO and that the compensatory increase in Psf is caused by a blood shift from unstressed to stressed blood volume.
(6) Mild, significant improvement was noted in one of the hearing components, "attenuation," and an adverse effect was shown on "distortion," owing to noise.
(7) It inhibits platelet and vascular smooth muscle activation by cGMP-dependent attenuation of the agonist-induced rise of intracellular free Ca2+.
(8) Genetic regulation of the ilvGMEDA cluster involves attenuation, internal promoters, internal Rho-dependent termination sites, a site of polarity in the ilvG pseudogene of the wild-type organism, and autoregulation by the ilvA gene product, the biosynthetic L-threonine deaminase.
(9) Pharmacodynamic relationships are not well established for other therapeutic effects of theophylline, such as attenuation of pharmacologically induced bronchoconstriction.
(10) Propranolol, 0.85 X 10(-6) M, did not significantly depress the ouabain-enhanced rate of phase 4 depolarization but did attenuate the response to epinephrine through beta blockade.
(11) After large bowel removal, there was impaired glucose tolerance and attenuated plasma insulin secretion.
(12) Studies were conducted in isolated, buffer-perfused rat lungs to determine if prostaglandin (PG) E1 attenuated pulmonary edema provoked by hydrogen peroxide (H2O2).
(13) The toxins preferentially attenuate a slow phase of KCl-evoked glutamate release which may be associated with synaptic vesicle mobilization.
(14) The Northern quahaug and a strain of the type 1 attenuated poliovirus were used as the working model.
(15) Our dynamic study indicated that: 1) a bolus injection of contrast medium with our method of CTA (CTA-B) produced an attenuation difference between liver and tumor which was about double that obtained with standard methods for CTA, and 2) marked tumor-liver attenuation differences (above 20 HU) persisted for more than 60 s in CTA-B and for not more than 20 s with conventional methods for CTA.
(16) It appears that the viscosity of the arterial wall must be the major source of attenuation in the larger arteries, while the viscosity of the blood plays a significant role only in the smaller vessels.
(17) Fluid movement out of the ICF space attenuated the decrease in the ECF space.
(18) We show that the two mutants (A44 and A46) affect attenuator control by different mechanisms.
(19) The type I cells are squamous and give off attenuated sheets of cytoplasm which spread widely over the septal surface; these sheets contain few organelles.
(20) A sequence of seven pairings of chili-flavored diet with prompt recovery from thiamine deficiency did significantly attenuate the innate aversion and may have induced a chili preference in at least one case.
Tenuous
Definition:
(a.) Thin; slender; small; minute.
(a.) Rare; subtile; not dense; -- said of fluids.
(a.) Lacking substance, as a tenuous argument.
Example Sentences:
(1) Diagnosis based on the character of the stridor alone is tenuous, and consideration of presentation other than the stridor is discussed in the management of these infants.
(2) Indian women are aware of our tenuous grip on our rights.
(3) Rising losses among the nearly 350,000-strong Afghan army and police, and a desertion rate of about 50,000 a year, also support Karzai's contention that control of large parts of the country remains tenuous.
(4) The results suggest that chronic sunlight exposure may be associated with an impediment to normal maturation of human dermal collagen resulting in tenuous amount of HHL.
(5) What the film does, though, is use these incidents to build an idiosyncratic but insightful picture of Lawrence, played indelibly by Peter O'Toole in his debut role: a complicated, egomaniacal and physically masochistic man, at once god-like and all too flawed, with a tenuous grip both on reality and on sanity.
(6) Because of disruption of the fasciocutaneous circulation, the perfusion of randomly based flaps is frequently tenuous.
(7) New employment data today suggested that hurricane Sandy is hurting already tenuous US job growth.
(8) Although extrapolation from animal studies may be tenuous, the present findings may explain the link between nutrition and the occurrence of alcoholic pancreatitis.
(9) If any of them is neglected or isolated from the rest, the whole will be impoverished-the student will suffocate in disconnected, empirical facts; fanciful theories will be spun from tenuous evidence; well established theory will be neglected by the practitioner; the best-intentioned schemes will have disastrous long-term consequences.
(10) However, circumstantial evidence is beginning to provide a tenuous link between smoking and the protease-antiprotease imbalance hypothesis.
(11) Though one possible mechanism for this reversal may include the inhibition of NAD-kinase by cAMP, there is evidence to suggest that such a direct cause-effect relationship is at present tenuous.
(12) We feel that tenuous attachments of the vitreous body to the fovea could exert traction on the vitreo-retinal interface or shrinkage of a fibrocellular membrane on the inner foveal surface could lead to the observations made by us.
(13) As has been long predicted by military critics of a bombing campaign, Mayville said Isis was already changing its tactics in response to the air strikes, particularly around Mt Sinjar, where on Saturday US warplanes attacked Isis positions surrounding the mountain where tens of thousands of Iraqi Yazidis have taken a tenuous refuge.
(14) In the years since the housing market bottomed out, Tremont and other pockets of Cleveland have witnessed a tenuous revitalisation thanks to newcomers seeking city lifestyles and new investment in 21st-century industry.
(15) Although the bright green light helped counteract sleepiness, any causal link with changes in melatonin output seem tenuous.
(16) America's arch enemy, Muammar Gaddafi, had thousands of troops camped in the remote desert of northern Chad, a forward front in his pan-African expansionist plan, but a thousand miles from Tripoli on tenuous supply lines and thus highly vulnerable.
(17) Data indicate that non-rehospitalization is associated with a stance of "positive withdrawal" (Corin 1990); it is characterized by a position at a distance from social roles and social relationships, combined with various strategies for keeping more tenuous links with the social environment.
(18) However, their entry into force was delayed for a "few days" according to a statement from Brussels, to leave time to assess the implementation of a tenuous ceasefire agreement in Ukraine negotiated last Friday.
(19) Although these results suggest a tenuous relationship between scrapie pathology and the integrity of neurotransmitter systems, it is possible that compensatory neurochemical changes in uncompromised neuronal populations may have masked potentially specific neurotransmitter effects.
(20) Mair’s links with far-right groups in the US and South Africa are well documented, but his associations with similar organisations closer to home appear more tenuous.