(v. t.) To reduce of fine powder or dust, as by beating, grinding, or the like; as, friable substances may be pulverized by grinding or beating, but to pulverize malleable bodies other methods must be pursued.
(v. i.) To become reduced to powder; to fall to dust; as, the stone pulverizes easily.
Example Sentences:
(1) The process of cellular fusion induced by Sendai virus in Chinese hamster cells (Don line) afforded us the opportunity to study nuclear envelope formation around metaphase sets in the presence of interphase nuclei, when chromosome pulverization failed to occur in such multinucleate cells.
(2) The longer the cells were incubated with Colcemid before fusion, the higher was the number of cells with telophase-like nuclei and the lower the percentage of cells with pulverizations.
(3) 30% of the metaphase cells from treated females and fetuses showed strongly contracted chromosomes and reduced number os "pulverized" chromosomes.
(4) These observations further substantiate our previously advanced hypothesis regarding the essential role played by substances present in a mitotic cell in the induction of chromosome pulverization and nuclear membrane dissolution.
(5) The stool samples are dried, pulverized, and then investigated.
(6) On the contralateral side, the demineralized bone was reimplanted without pulverization, but with bone marrow.
(7) Therefore, the utmost care should be taken in the production and handling of pulverized enzymes and their inhalation should be avoided.
(8) ARU chief executive Bill Pulver has announced a change to allow a few, much-capped players based offshore to be selected for Australia.
(9) After UV treatment, pulverization of the chromosomes occurred and larger nuclear fragments which might be products of an abnormally proceeding mitosis with chromatin confluence were observed.
(10) The trace photodegradation product in pulverized tablets is determined along with nifedipine by the same procedure.
(11) Cells were cultured for varying periods in the presence and absence of nonpolymerized methacrylate (one to two-micrometer spherules), pulverized polymerized material, or culture chambers that were pre-coated with polymerized cement.
(12) In addition to chromosomal breaks, gaps and pulverization, three kinds of cytogenetic damage (double minutes, polyploidy and endoreduplication) not yet reported following productive infection with HSV or other animal viruses were frequently observed.
(13) Pulverized calcium oxalate renal stones were extracted with 0.05 M EDTA, pH 8.0; nephrocalcin eluted in five peaks using DEAE-cellulose column chromatography, and each peak was further resolved by Sephacryl S-200 column chromatography.
(14) Analyses with the use of cell synchronization and autoradiography revealed that chromosome aberrations were induced only in the cells which synthesized DNA during incubation at 39 degrees C. We classified the chromosome aberrations into five types: gap or break type; exchange type; pulverization type; complex type; and ring type.
(15) All birds on one of the premises ( a total of 14, 000) were vaccinated when 5 days old with a liquid vaccine of strain B1 (one fourth dose per bird) using the Dutch pulverizing apparatus Flox-10 -- group I.
(16) Shock wave generation by spark gap, electromagnetic, piezoelectric and microexplosive techniques are related to their peak energy, frequency, and total energy capabilities which impacts on both anesthesia needs and the length and number of treatment sessions required to pulverize calculi.
(17) Photo-irradiation of G2 or early prophase chromatin induced chromosome pulverization.
(18) After pulverization the dusts contained 98.1% and 99.6% respirable particles, and 6.5% and 6.0% of SiO2, respectively, determined with the Polezhajev method.
(19) The effect of pulverized plastic and glass-ceramic materials (methylmetacrylate, MNA), which are used as implantation materials in surgical medicine, on cell growth, DNA synthesis rate (adjudged by incorporation of 3H-thymidine into DNA), glucose consumption and lactate production (glycolytic rate) was studied in asynchronous monolayer cultures of rather fast proliferating Ehrlich ascites tumor cells and rather slowly proliferating diploid human fibroblasts.
(20) One patient with total stone pulverization, become jaundiced 1 month after ECSWL and a gallbladder carcinoma was found at surgery.
Snuff
Definition:
(v. t.) The part of a candle wick charred by the flame, whether burning or not.
(v. t.) To crop the snuff of, as a candle; to take off the end of the snuff of.
(v. i.) To draw in, or to inhale, forcibly through the nose; to sniff.
(v. i.) To perceive by the nose; to scent; to smell.
(v. i.) To inhale air through the nose with violence or with noise, as do dogs and horses.
(v. i.) To turn up the nose and inhale air, as an expression of contempt; hence, to take offense.
(n.) The act of snuffing; perception by snuffing; a sniff.
(n.) Pulverized tobacco, etc., prepared to be taken into the nose; also, the amount taken at once.
(n.) Resentment, displeasure, or contempt, expressed by a snuffing of the nose.
Example Sentences:
(1) The relatively high levels of potentially carcinogenic TSNA in the saliva, together with the current popularity of snuff usage by teenagers, is of particular concern.
(2) Individual effects of tobacco on, a.o., the blood vessel supply of the oral mucosa were, thus, documented photographically every five minutes after cigarette smoking and snuff-dipping respectively in three healthy volunteers, aged 45, 35 and 30 years.
(3) The use of smokeless forms of tobacco, such as snuff and chewing tobacco, is growing at alarming rates.
(4) The dose-response relationship between pancreatic bicarbonate production and varying doses of synthetic secretin administered intravenously and in the form of snuff, was good.
(5) Twenty-nine subjects, 3 showing Degree 2 lesions, 21 Degree 3 lesions and 5 Degree 4 lesions, all of them loose snuff users were identified.
(6) These data confirm that a water-soluble extract of snuff has anti-cytolytic and anti-proliferative effects on peripheral blood lymphocytes.
(7) During the last ten years, over 900 samples of foods, snuff and other products on the Swedish market were analysed for N-nitrosamines.
(8) 184 using exclusively loose and 68 portion-bag snuff.
(9) Most of the snuff brands were rich in nitrate (greater than or equal to 1.5%), total polyphenols (greater than 2%), and in nicotine (greater than or equal to 1.5%), which is the habituating factor in tobacco use.
(10) Based on 133 cases diagnosed between 1976-1982 and 948 controls, there were significant excesses associated with use of the drug chloramphenicol (odds ratio (OR) = 5.4, 95% confidence interval (Cl) 1.2-23.9) and chewing tobacco or snuff (OR = 1.8, 95% Cl 1.1-2.9).
(11) Smokeless tobacco (chewing tobacco and snuff) contains known carcinogens shown to increase the risk for oral cancer.
(12) However, the formation of N-nitrosoproline in cigarette smokers and snuff dippers proves that smoke and snuff have a measurable potential for the endogenous formation of carcinogenic nitrosamines.
(13) It was found that 50 (81%) of the 62 questioned patients used snuff in the form of saffa.
(14) Various Indian tobacco products--cigarette, bidi, chutta and their smoke, chewing tobacco and snuff (used for inhalation as well as a dentifrice) were analysed for their content of tobacco-specific nitrosamines (N'-nitrosonornicotine, 4-(N-nitrosomethylamino)-1-(3-pyridyl)-1-butanone and N'-nitrosoanatabine) by means of a gas chromatograph interfaced with a thermal energy analyser.
(15) After 3000 chewing strokes on each plate, the wear of the plate used while chewing snuff was significantly less compared to the plate used while chewing with nothing in the mouth.
(16) To estimate the risk of myocardial infarction in snuff users, cigarette smokers, and non-tobacco users in northern Sweden, where using snuff is traditional.
(17) Loose snuff users showed predominantly histologic Type 1 changes while portion-bag users showed more histologic Type 2 or only very discrete changes.
(18) The response of the human pancreas to varying doses of pure synthetic secretin administered intravenously and, for comparison, 8 days later in the form of snuff was examined, intraindividually, in 10 healthy test subjects.
(19) The suppression of ulcers was most evident for those groups smoking pipe or cigarettes without filter and only moderate for those using snuff.
(20) Why, it's Sepp Maier demonstrating how to use a snuff feather, of course.