(n.) Any foul of filthy substance, as excrement, mud, dust, etc.; whatever, adhering to anything, renders it foul or unclean; earth; as, a wagonload of dirt.
(n.) Meanness; sordidness.
(n.) In placer mining, earth, gravel, etc., before washing.
(v. t.) To make foul of filthy; to dirty.
Example Sentences:
(1) But this morning's right-of-centre national papers were determined to rub his nose in the dirt.
(2) He got so bad that I - and this is true - turned off the television and went outside to watch my son add to his dirt collection.
(3) But Gates’s decision to “bump off from art” and live “in the sphere of dirt, the dirty, the stuff that we think is in the ground” was revelatory, leading to invitations to Davos and a TED Talk, where he talked about how he revived a neighborhood with imagination and hard graft .
(4) Earlier this year, a century-old wasteland of limestone and red dirt in south-west Nigeria was transformed into the biggest cement plant in Africa.
(5) Along with Woody Guthrie and Lead Belly, he brought the music of the dirt farms, the sweat shops and the lonesome highways into America's – and later the world's – living room.
(6) The land is held by the Navajo people, and visitors must pay an access fee to drive through the tribal park on a 17-mile dirt loop, which is suitable for all cars when dry but impassable after a storm ( usually in late summer).
(7) It’s a bit of a trek to get there: a few kilometres drive along a dirt road and then a short walk, with arrows painted on stones.
(8) Apparently, optimal disinfection of contaminated knives is extremely difficult to attain without the use of mechanical forces such as a high pressure water jet to remove the dirt.
(9) This state of high resistance to infection can be reduced by several factors which include circulatory embarrassment, tissue injury, dead space, and the presence of foreign bodies (dirt, sutures, drains, etc.).
(10) Among the prime concerns, especially for facial skin, is the type of dirt, debris, or make-up to be removed.
(11) We’re out there one night ’til 3am shoveling dirt on the fire.
(12) The land that when you shed your shoes and walk, you feel every grain of dirt and every blade of grass and for a moment, everything is right in the world and you are in your rightful place in it.
(13) Because the all-hallowed children must learn from their elders to exercise, every adult entering Hampstead Heath must hit the dirt for a set of 25 press-ups.
(14) Elevated concentrations of the soil fungi were significantly (P = 0.05) associated with the dirt floor, crawl-space type of basement.
(15) With its dirt pavements and crumbling wooden homes, the city of Kirov is a city stuck in time.
(16) Another former colleague in the psychological operations unit, Fred Allen Lucas, said that Page called him a "race traitor" for dating Latina women and took to calling other races "dirt people".
(17) Observations for estrus were conducted three times daily in a dirt paddock containing a testosterone-treated cow.
(18) On the outskirts of Juba, along a dirt road just past the UN camp, opposition forces clad in new uniforms and boots lined up for a military parade.
(19) Lead antiknock additives are therefore not a significant contributor to the lead content of dirt around houses where children usually play.
(20) As the result of smear slide evaluation, it was concluded that proper sputum specimens have been smeared but smears were generally too thin and contaminated with too many dirt .
Impurity
Definition:
(n.) The condition or quality of being impure in any sense; defilement; foulness; adulteration.
(n.) That which is, or which renders anything, impure; foul matter, action, language, etc.; a foreign ingredient.
(n.) Want of ceremonial purity; defilement.
Example Sentences:
(1) Two other impurities are pyrene derivatives but their acyl chains probably are not decanoic acid.
(2) No impurities in the technical grade ether influenced the responses.
(3) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
(4) Chloramphenicol, dinitrophenol, and impurities present in some brands of agar all appear to inhibit the growth-medium-dependent branch of excision-repair.
(5) The combined results describe the depth of segregation of DMS blocks in Avcothane, the presence of DMS within the topmost 20 A in Biomer, and similar impurities in the model polymers.
(6) An impure sample of PLC inhibited sperm penetration, while a more purified preparation did not.
(7) A liquid chromatographic (LC) method was adapted for the determination of epinephrine and related impurities in intravenous and cardiac injections; ultraviolet (UV) and electrochemical detectors (EC) were used in series.
(8) The determination of potency or shelf life, impurity limit testing, and study of reaction mechanisms are considered as different aspects of drug stability.
(9) Isolated cytochrome c oxidase was fractionated by native-gel electrophoresis in Triton X-100, and a preparation of enzyme almost completely free of the usual impurities was recovered.
(10) Although these are worst case calculations, a consistent approach should be reconsidered to limit the additional effective dose equivalent from impurities to e.g.
(11) As little as 50 nmol of a protein may be quantified and an impurity peak of molecular weight ca.
(12) Not all impurities were found in every lot of drug investigated, and none of the impurities exceeded a concentration of 1% of the meperidine present.
(13) Skin impurities and fatty hair associated with acne were side effects in 22.5% of 378 patients during the first evaluation and in 10.8% of 369 patients at the second evaluation.
(14) The organic solvent soluble impurities exhibited strong mutagenic activity for TA98 and slight activity for TA100.
(15) Following this order the absorbents can be used for purification of human albumin from non-specific impurities taking into account stronger adsorption of albumin or impurities.
(16) Trace amounts of an impurity commonly produced in the synthesis of 1,2-distearoyl-3-sn-phosphatidylcholine, 1,3-distearoyl-2-sn-phosphatidylcholine, are found to dramatically reduce the rate of loss of small vesicles at 21 degrees C.
(17) It is shown on the basis of calculations of energy sublevels of the hyperfine structure that the effect of the geomagnetic field upon the impurity atoms in the volume of living cells should be considered in relation to the value of geomagnetic field induction pulses delta B.
(18) Contamination of cells by impurity atoms that may leach from electrodes was measured by atomic-absorption spectrophotometry and found to be negligible.
(19) Results presented here indicate that N-nitroso compound impurities are absent from the majority of the products tested.
(20) Eight of the proteins (L9, L11, L13, L21, L22, L35', L37 and L39) had no detectable contamination; the impurities in the others were no greater than 9%.