(n.) A quantity of wood ashes, through which water passes, and thus imbibes the alkali.
(n.) A tub or vat for leaching ashes, bark, etc.
(v. t.) To remove the soluble constituents from by subjecting to the action of percolating water or other liquid; as, to leach ashes or coffee.
(v. t.) To dissolve out; -- often used with out; as, to leach out alkali from ashes.
(v. i.) To part with soluble constituents by percolation.
(n.) See Leech, a physician.
Example Sentences:
(1) Updated at 2.53pm GMT 2.48pm GMT 'Tricky job, well done' - IoD Graeme Leach , chief economist at the Institute of Directors, said: This was a tricky job, well done by George Osborne.
(2) In this study two soft coals obtained from mines in which workers had high and low incidences of CWP were leached with aqueous base and acid to remove their acidic and basic components.
(3) Leaching the lyophilized mitochondrial fraction with either hexane or acetone increased substantially the yields of the metabolites.
(4) Worse, the CFL contains mercury, which according to the EU's own regulations cannot be discarded in ordinary waste, lest the mercury leach into the water supply.
(5) A steady decline in the incidence with an increase in the preponderance of male cases was observed toward the west, reaching the lowest figures (male: 17.2 cases per 100,000 population; female: 5.5 per 100,000) in the Caspian rain belt, with its heavily leached soils and somewhat subtropical characteristcs.
(6) In spite of the leaching and contamination effects described in the literature--even for chrysotile fibrils taken from the lung, elemental spectra do not differ essentially from the asbestos standard.
(7) Contamination of cells by impurity atoms that may leach from electrodes was measured by atomic-absorption spectrophotometry and found to be negligible.
(8) "The UK economy faces a difficult period over the coming years, but if the government holds firm with the implementation of the spending review, long-term growth and employment prospects will be significantly improved," said Graeme Leach, chief economist and director of policy at the IoD.
(9) Once the pollution has ceased, it would appear that the arsenic is rapidly leached away, with a return to ecological normality this recovery was surprisingly rapid and complete.
(10) The surface is stabilized, i.e., leaching is retarded, by the rapid Ca,P-accumulation within the silica structure before apatite crystals are observed on the surface.
(11) In Dr Leach's book, a 13-year-old talking about the fall-out from her parents' break-up says: "I felt I'd vanished."
(12) Some cells, however, showed evidence that intracytoplasmic materials had been leached from the cells.
(13) Diethyl phthalate in the desiccant in 100-count bottles of brand A levothyroxine sodium tablets appeared to have leached into the tablets.
(14) With the leach tank incident in December there were questions raised about our environmental performance.
(15) The tendency of composites to leach filler elements almost linearly with time, could be used to generate a constant release rate of such therapeutic elements over time.
(16) Dissolution is incongruent, probably because most of the leached species can derive both from the matrix (polysalt gel) and the partly reacted glass particles.
(17) There was no evidence of energy-dependent extrusion of water or ions from either equilibrated rat or rabbit renal cortical slices leached at 0.5 degrees C and then reincubated at 25 degrees C in choline Ringer.7.
(18) Leach has also just been appointed advisory chair of next year's Guardian Edinburgh International Television Festival, reinforcing the sense that she and Twofour have earned their place at the TV industry's top table.
(19) Upon harvest (three months after application), a total of 49.2% of the applied radiocarbon was recovered: 2.0% in the plants, 46.9% in the soil, and 0.3% in the leaching water (depth greater than 50 cm); less than 0.1% was in the grains (0.464 ppm).
(20) The power requirements for initial leaching conditions were also calculated.
Percolate
Definition:
(v. t.) To cause to pass through fine interstices, as a liquor; to filter; to strain.
(v. i.) To pass through fine interstices; to filter; as, water percolates through porous stone.
Example Sentences:
(1) As soon as the component with the lower mechanical stability is percolating the powder system, tablet hardness is controlled entirely by this component.
(2) This group consisted of 101 cases of whom 38 underwent semen treatment with Centrifugation on a Discontinuous Percoll Gradient (CDPG) and 63 with Pellet Swim-up (PS); the control group was made up of 31 normospermic patients where the semen was treated by PS.
(3) The attempt to fractionate the testicular cells by centrifugation in the continuous and discontinuous Percoll gradient was undertaken.
(4) The platelet subpopulations were separated with discontinuous gradients of Percoll.
(5) By using Percoll discontinuous density gradient centrifugation, peripheral blood nonphagocytic and nonadherent mononuclear cells were divided into the low and high density fractions for which natural killer (NK) cells and T cells were enriched, respectively.
(6) We conclude that both localized memory and percolation are possible in stimulatory idiotypic networks.
(7) The effect of activated PMN was tested on the motility of Percoll-washed spermatozoa in the presence and absence of reactive oxygen species scavengers or seminal plasma (whole or fractionated).
(8) To cope with this problem, in 27 IVF cycles, sperm selection was performed by centrifugation on discontinuous Percoll density gradient.
(9) Thirdly, the discontinuous percoll density gradient centrifugation was used to separate P. carinii cysts.
(10) Fractionation by Percoll density centrifugation of peripheral blood leucocyte cells, from atopic subjects with seasonal hay fever, unmasked IgE-B cell populations whose individual capacities to synthesize IgE in vitro were obscured in cultures of unfractionated B cells.
(11) Inspection of the cavity margins revealed absence of percolation at the dentin margins.
(12) In general, IEL of satisfactory yield and of good viability were obtained with EDTA treatment of the gut tissues, followed by rapid passages of the resultant cells through nylon-wool columns and centrifugation on two-step Percoll density gradients (45% and 80%).
(13) Basolateral membranes obtained by self-orienting Percoll-gradient centrifugation were treated with 5 mM CaCl2 to minimize the cross-contamination by brush border membranes.
(14) Percoll-purified high density small lymphocytes had little or no migratory capacity under these conditions, requiring a longer incubation time (4 hr) for consistent migration.
(15) Guinea pig marrow cell suspensions were first enriched for megakaryocytes by density equilibrium centrifugation in continuous Percoll density gradients.
(16) Using Percoll density gradient centrifugation, 1,25(OH)2D3 receptors could be localized in the basal cell fraction.
(17) After introduction of erythrocyte targets, there was a 20- to 30-min delay before initiation of phagocytosis that was not observed with monocytes prepared by the standard Percoll-gradient technique.
(18) To accomplish this, blood was obtained from patients with ragweed AR, granulocytes were isolated and fractionated by continuous density Percoll gradients, and the density distribution of these cells was determined after centrifugation.
(19) A cellular compartment from brown adipose tissue (BAT) of newborn rats was isolated by Percoll-density-gradient centrifugation and was shown to proliferate and to undergo adipose conversion in vitro in primary culture.
(20) Collagenase-dispersed cells from human chorion laeve were examined on Percoll gradients.