What's the difference between pester and tester?

Pester


Definition:

  • (v. t.) To trouble; to disturb; to annoy; to harass with petty vexations.
  • (v. t.) To crowd together in an annoying way; to overcrowd; to infest.

Example Sentences:

  • (1) The creation of Albion’s second goal was more artful, even if it started with Özil being pestered into surrendering possession near halfway.
  • (2) It was Tim, an archivist from Warners whom I had been pestering for years about trying to track down some long-lost film footage.
  • (3) They should not pressure children or pester parents to buy products, and promotional offers should be used with a "due sense of responsibility".
  • (4) The allegations are sure to concern many parents whose children are pestering them to buy the extensive range of Cars 2 toys launched to coincide with the movie, which hit UK cinema screens in July.
  • (5) Professional irritant Kenny Miller wins a corner down the right, with some incessant pestering.
  • (6) For a year I have been pestered with: "X has got Facebook.
  • (7) He kept pestering her, phoning and phoning and phoning her."
  • (8) But while the Christians are still pestering God, the end-of-daysers awaiting Armageddon, and the Aryan brothers proving the least convincing imaginable argument for the superiority of their race, things have changed quite drastically in porn, which has been even more vulnerable than cinema, TV or music to the predations of the internet.
  • (9) Kala-azar (KA), an enigmatic disease has resurged in India since 1970's after about a lull of 20 years, displaying its pestering nature.
  • (10) The band became pally with him and pestered for a support slot when his Black Pus project (another great name) came to town.
  • (11) After a bit of good-natured pestering, she agrees to sell all of us one drink so we can discuss the heady topic of race in America while slightly intoxicated.
  • (12) Artists don't stand next to their artwork in galleries pestering the public to part with their pound coins.
  • (13) For now he is determined to stick with his work in the building industry, despite his workmates pestering him for the odd Victoria sponge or carrot cake.
  • (14) Nine hours working as an exterminator takes a physical toll on the 45-year-old , who didn’t go to college, makes $33,000 a year, and relies on a steady swarm of pests to pester people in his 90% rural county.
  • (15) The new boss, Paul Pester, whose £1.6m outstanding bonuses from Lloyds are to be transferred to TSB, is also aiming for growth in current accounts, where it has only 4.2% market share despite having some 6% of high street branches.
  • (16) There are some innovative ideas about, he says, on ways of teaching children in school to wash their hands – in the hope that they will then go home and pester their parents to do the same.
  • (17) Joleon Lescott, who endured a torrid debut for Villa, and Micah Richards were pestered into errors in the opening minutes and the latter was especially relieved that Danny Drinkwater’s shot from 25 yards flew over the bar.
  • (18) Paul Pester, chief executive of TSB, said the branches that were closing were within 500 metres of another TSB branch and were part of the estate it inherited when it was carved out of Lloyds Banking Group last year.
  • (19) Pester said the bank had achieved its target of winning more than 6% of all new current accounts and those being switched between banks.
  • (20) Pester added that, of the 631 branches TSB started with, there were 15 locations where two or three branches were “within spitting distance of each other”.

Tester


Definition:

  • (n.) A headpiece; a helmet.
  • (n.) A flat canopy, as over a pulpit or tomb.
  • (n.) A canopy over a bed, supported by the bedposts.
  • (n.) An old French silver coin, originally of the value of about eighteen pence, subsequently reduced to ninepence, and later to sixpence, sterling. Hence, in modern English slang, a sixpence; -- often contracted to tizzy. Called also teston.

Example Sentences:

  • (1) As compared with solvent-treated control, no significant increases were observed in the number of revertant colonies in all tester strains in both systems with and without mammalian metabolic activation (S9 Mix).
  • (2) Gamma-ray-induced reversions in the Ames Salmonella tester strain TA2638 have been studied for their dependence on a number of experimental parameters.
  • (3) In addition to the fatigue tester and the pulse duplicator, a signal conditioner, a DC amplifier, an analog-to-digital converter, and a digital microcomputer comprised the essential hardware.
  • (4) Exogenous IC-DH in the incubation for LMA did not alter the mitotic crossing-over and the mitotic gene conversion of dimethylnitrosamine (DMNA) and AR2MNFN (a nitroimidazo[2,1-b]thiazole) in the tester D7 strain of Saccharomyces cerevisiae.
  • (5) These results suggest that nickel is unable to induce basepair or frameshift mutations in Salmonella tester strains and are discussed in relationship to the low binding affinity of Ni(II) for DNA.
  • (6) In Drosophila melanogaster new tester strains for the somatic mutation and recombination test (SMART) in the wing were constructed with the aim of increasing the metabolic capacity to activate promutagens.
  • (7) Vibratory sensitivity was strongly related to height when measurements were made with either the vibration sensitivity tester (P = .02) or the biothesiometer (P less than .01); however, there was no relation between thermal sensitivity (as measured with the thermal sensitivity tester) and height.
  • (8) Trials with Escherichia coli ATCC and Staphylococcus aureus ATCC strains have been carried out using a point-acting tester as generator of negative oxygen ions.
  • (9) In addition, the depression of prophage induction observed when the drugs were combined with aflatoxin B1 may be indicative of a common target site of action in the tester strains.
  • (10) The newly engineered acetyltransferase-enhanced Salmonella tester strain YG1024 (TA98(pYG219] demonstrated greatly enhanced sensitivity to the mutagenicity of 2,4-DAT.
  • (11) A study was conducted to evaluate the potential of the Testark system in comparison with a commercially available pulp tester.
  • (12) The stiffness tester and torque meter were found to yield nearly the same measurements of bending deformation for orthodontic wires as small as .007 inch diameter, provided the different bending apparatus are calibrated to each other.
  • (13) Results establish a revised expression for Young's modulus and show that either the stiffness tester or the torque meter will yield essentially the same measured values of bending properties.
  • (14) These findings indicate the necessity for using the same tester when effects of treatment are evaluated.
  • (15) To aid linkage analysis and mapping studies in Dictyostelium discoideum, we have constructed several tester strains with easily scored mutations characterizing the six currently identified linkage groups.
  • (16) Chromotest agar dishes yielded optimal results after 16-18 h incubation, presumably because of the agar growth characteristics of tester strain PQ37.
  • (17) The two strains were crossed individually to normal sequence tester strains and the sizes of the proximal and distal segments were followed by pulsed-field gel electrophoresis.
  • (18) Despite the strong, positive mutagenic response of fecanpentaenes using Ames tester strains TA 98 and TA 100, no increase in nuclear aberrations, taken as a measure of genotoxicity in colonic epithelial cells, was observed over control levels.
  • (19) The deficience can be restored, giving respiratory sufficience, in crosses with rho0 testers.
  • (20) The mutants have also been crossed to mit- testers with defined genetic lesions.