(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.
Rarefy
Definition:
(v. t.) To make rare, thin, porous, or less dense; to expand or enlarge without adding any new portion of matter to; -- opposed to condense.
(v. i.) To become less dense; to become thin and porous.
Example Sentences:
(1) The 6410t cells were shown to bind specifically this factor and react to it by proliferation in the conditions of rarefied inoculation.
(2) An initial reaction of mononuclear cells, activated fibroblasts, and some giant cells of foreign body type in the surrounding connective tissue is followed by the development of a fibrous capsule rarefied by cells around the implant in the time up to 3 months.
(3) As half an hour of vox-poppery proves, this is also a place where the supposedly rarefied issue of electoral reform may actually come up on the proverbial doorstep.
(4) Fluorescein angiography demonstrated slight hyperfluorescence through rarefied retinal pigment epithelium but no leakage occurred from perifoveal retinal capillaries.
(5) Bone-destructive inflammatory processes (rarefying osteitis) were the most frequently encountered lesions, occurring in both the maxilla and the mandible.
(6) Their genuine disregard for the clichés of being in a band means conversation is relaxed, while their rarefied wealth of music, film and TV geekery makes for good gags.
(7) Nerves injected with demyelinating serum contained oligodendrocytes with pyknotic nuclei and edematous, rarefied cytoplasm.
(8) "Due to uncertainties in predicting the rarefied atmosphere at these very high altitudes, the accuracy of re-entry prediction is of the order of 10% of the remaining lifetime, so even on the last orbit revolution (90 minutes), there is a nine-minute prediction uncertainty.
(9) He didn’t inhabit rarefied social circles or drive a Bentley.
(10) Electron-microscopic examination revealed capillary engorgement with erythrocytes that appeared adherent to each other and contained entrapped areas of rarefied material.
(11) As evidenced from experiments on rats, a combined application of apressin with obsidan and diprazine, and also of adenozine with nicotine-amidadenine-dinucleotide (NAD), as well as of adeozine with nicotine amide potentiates the protective effect of these substances in hypobaric hypoxia, increases the resistance of the animals to cerebral ischemia, brings down the excess lactate level and raises the redoz potential of the system lactic-acid-pyruvic acid in the brain of rats exposed to the effects of rarefied atmosphere.
(12) Fibrillar and flocculent deposits were seen in the widened and rarefied subendothelial space in a small artery and two glomeruli, one of which also contained electron-dense deposits.
(13) I don't mean literature is obscure or rarefied or precious – that's no test of a book – rather it is operating on a different level to our everyday exchanges of information and conversation.
(14) The authors found that the median portion of chiasma is a weak point of microcirculation, as demonstrated by rarefied and transverse capillaries.
(15) In 90 days of Hk reduction of the capillaries is recorded, rarefied pericapillary network prevails, twistedness of the capillaries is clearly manifested, their complex branching decreases.
(16) The white matter showed a rarefied texture with widely dispersed nerve fiber tracts, volume expansion, and occasional cyst formation.
(17) Histopathologic findings included rarefied white matter with pyknotic nuclei and eosinophilic cytoplasm.
(18) However, looking at the neat rows of symbols made me reflect on how rarefied this sort of data can seem when summarised for a national website.
(19) No compensatory rarefying of acid discharge from the stomach, that was observed in reference subjects if transport of contents was accelerated, was detectable in the patients with ulcerative colitis.
(20) Microscopic sections of the skin revealed a thickened dermis with shortened and rarefied elastic fibers.