What's the difference between preempt and replace?

Preempt


Definition:

  • (v. t. & i.) To settle upon (public land) with a right of preemption, as under the laws of the United States; to take by preemption.

Example Sentences:

  • (1) In one patient the information obtained by two-dimensional echocardiographic studies was believed to be sufficient to preempt the need for cardiac catheterization.
  • (2) It is concluded that cytologic examination of colonic brushings is a highly accurate and reliable technique for the detection of malignant neoplasms of the colon and can preempt the use of biopsy forceps.
  • (3) The influences of Li or protons, however, are so strong as to preempt the volume effects, so that the pathway can be activated even in swollen cells and deactivated in shrunken ones.
  • (4) A proactive style of preempting opportunities for misbehavior, in contrast to a reactive style of responding only after misbehavior occurred, was correlated with a lower incidence of undesirable child acts.
  • (5) As transcription proceeds, it is preempted by formation of an alternative domain designated stem-loop IV.
  • (6) In a written statement earlier this week , the foreign secretary, Boris Johnson, sought to preempt the committee by asserting the UK would continue to export weapons to Saudi Arabia, claiming the “key test” of a serious risk of breach of international humanitarian law had not been met.
  • (7) Though Washington law does not preempt federal statute, under which marijuana is still illegal, the Justice Department assured Washington governor Jay Inslee that it would not sue to overturn the state’s development of a highly regulated marijuana market.
  • (8) "In the Senate and in America, the concerns that kept us out of Kyoto back in 1997 are still with us today, and we need to preempt them here in Copenhagen," Kerry warned.
  • (9) The "security hypothesis" suggests food hoarding by rats serves to preempt attack and therefore might be motivated by "anxiety".
  • (10) The federal requirements, while not preempting state law damages claims, do provide a mechanism for achieving some protection from liability.
  • (11) While MRI has clearly preempted many applications, CT is still the examination of choice in several clinical settings.
  • (12) Furthermore, Congress, through the Cigarette Labeling and Advertising Act and Smokeless Tobacco Education Act, has not preempted or removed the power of states to ban sampling.
  • (13) Preempting innovations--novel terms identical in form to conventional terms, such as uniforms--provide the means to contrast the models.
  • (14) We’re working to 2025.” He said he did not believe there was a need to preempt judicial reviews, adding: “The government has been stung by these before so I can understand them wanting to be sure it is robust.” In an unusually strong attack on Gatwick, Holland-Kaye warned that the prime minister had a choice of a third runway at Heathrow or a Gatwick option that “will not get us to emerging markets, which does nothing for the regions of the UK, or for exports, that delivers a fraction of the jobs or the economic benefits, is less financially robust, does not have the support of business or unions, nor the local community, nor the airlines, nor politicians, nor the policy basis of the airports commission.
  • (15) Without preempting them, I can tell you something about the direction of travel," he told a Voice of the Listener and Viewer conference in central London today.
  • (16) These unnatural deaths preempted any excess in natural causes before the age of 70 years, such as cardiovascular disease.
  • (17) The concept of dissociation increasingly preempts repression and other defense mechanisms in current nosological thinking.
  • (18) The present results indicate that diuretics preempt the appearance of a forthcoming increase in serum glucose and cholesterol, and lessen the clinical relevance of these events.
  • (19) Joyce had already held a press conference in New England to preempt the announcement.
  • (20) Thus the ability of the Act to preempt litigation substantially is questionable, the authors state, and they recommend a broader definition.

Replace


Definition:

  • (v. t.) To place again; to restore to a former place, position, condition, or the like.
  • (v. t.) To refund; to repay; to restore; as, to replace a sum of money borrowed.
  • (v. t.) To supply or substitute an equivalent for; as, to replace a lost document.
  • (v. t.) To take the place of; to supply the want of; to fulfull the end or office of.
  • (v. t.) To put in a new or different place.

Example Sentences:

  • (1) Thyroid replacement led to resolution of both apnea and depression.
  • (2) This may be due to efficient replacement of Leu by Phe at CUC (and, probably, CUU) codons throughout the genome.
  • (3) The previous year, he claimed £1,415 for two new sofas, made two separate claims of £230 and £108 for new bed linen, charged £86 for a new kettle and kitchen utensils and made two separate claims, of £65 and £186, for replacement glasses and crockery.
  • (4) We recently demonstrated that functional change in SSI was possible simply by replacing the amino acid residue at the reactive P1 site (methionine 73) of SSI.
  • (5) Analogues of [Orn6]-SP6-11 have been synthesized in which the Met11 residue is replaced by glutamate gamma-alkylesters.
  • (6) In fact, the addition of conditioned medium obtained by 48 hr preincubation of isolated monocytes with 10% PF-382 supernatant (M-CM2) or the concomitant addition of supernatant from PF-382 cells (PF-382-CM) and from unstimulated monocytes (M-CM1) are capable of fully replacing the presence of monocytes in the BFU-E assay.
  • (7) Major plasma metabolites of quazepam were 2-oxoquazepam (OQ), obtained by replacement of S by O,N-desalkyl-2-oxoquazepam (DOQ), and 3-hydroxy-2-oxoquazepam (HOQ) glucuronide.
  • (8) Attachment of the graft to the wound is similar with and without the addition of human basic fibroblast growth factor, a potent angiogenic agent, to the skin replacement before graft placement on wounds.
  • (9) It was concluded that the detachment of the oxaloyl residue from oxaloacetate and its replacement by a proton proceed with inversion of configuration at the methylene group which becomes methyl during the hydrolysis.
  • (10) I f you haven’t got a family, you need that replaced in some way, that’s the most important thing you can do for someone in care,” says 24-year-old Chloe Juliette, herself a care leaver.
  • (11) It is an intriguing moment: the new culture secretary, Sajid Javid, who was brought in to replace Maria Miller last month, is something of an unknown quantity.
  • (12) Replacement of Na+ by K+ or Li+ did not alter uptake, whereas replacement of Cl- by HCO-3 or gluconate- reduced uptake by approximately 40%.
  • (13) He underwent a mitral and aortic valve replacement, followed by a complicated postoperative course.
  • (14) Substitution of NaCl in the extracellular medium by sucrose, LiCl, or Na2SO4 had no effect on glutamate stimulation of [3H]dopamine release; however, release was inhibited when NaCl was replaced by choline chloride or N-methyl-D-glucamine HCl.
  • (15) C. parasitica mutant strains deficient in the production of endothiapepsin (eapA-) were constructed using a gene-replacement strategy.
  • (16) Replacement of vinyl groups with bulkier substituents (hydroxyethyl or acetyl groups) decreases holoenzyme stability and catalytic activity.
  • (17) It became fully operational in 1975, replacing its predecessor the rubber bullet.
  • (18) The experimental results for protein preparations of calmodulin in which Ca2+ was isomorphically replaced by Tb3+ were obtained by a spectrometer working at the Institute of Nuclear Physics.
  • (19) The rate of indole production is increased about 4-fold when the aminoacrylate produced is converted to S-(hydroxyethyl)-L-cysteine by a coupled beta-replacement reaction with beta-mercaptoethanol.
  • (20) Ultrastructural study of the uterine lesion demonstrated smooth muscle cells with only a few "autophagic" facuoles to cells nearly replaced by lysosomes.