What's the difference between approximate and exact?

Approximate


Definition:

  • (a.) Approaching; proximate; nearly resembling.
  • (a.) Near correctness; nearly exact; not perfectly accurate; as, approximate results or values.
  • (v. t.) To carry or advance near; to cause to approach.
  • (v. t.) To come near to; to approach.
  • (v. i.) To draw; to approach.

Example Sentences:

  • (1) Between 25 and 40 degrees C, the thermal dependencies of VR and f were approximately constant (Q10's of 1.31 and 1.36 got VR and f, respectively).
  • (2) The proportion of teeth per child with calculus was approximately 8 percent for supragingival and 4 percent for subgingival calculus.
  • (3) 5-Azacytidine (I) stability was increased approximately 10-fold over its stability in water or lactated Ringer injection by the addition of excess sodium bisulfite and the maintenance of pH approximately 2.5.
  • (4) This time is approximately six months for the neuroleptics given orally, one month for antidepressants, and five and a half half-lives for benzodiazepines.
  • (5) After 55 days of unrestricted food availability the body weight of the neonatally deprived rats was approximately 15% lower than that of the controls.
  • (6) In the clinical trials in which there was complete substitution of fat-modified ruminant foods for conventional ruminant products the fall in serum cholesterol was approximately 10%.
  • (7) Only the approximately 2.7 kb mRNA species was visualized in Northern blots of total cellular and poly(A+) RNA isolated from cardiac ventricular muscle.
  • (8) The enzyme was solubilized by Triton X-100 and purified approximately 480-fold by gel filtration and affinity chromatography on alanine methyl ketone-AH-Sepharose 4B.
  • (9) The Cao-dependent Na+ efflux was half-maximally activated by [Ca2+]o = 2.0 mM in LiSW and 7.2 mM in Tris-SW; at saturating [Ca2+]o, [Ca2+]i, and [Na+]i the maximal (calculated) Cao-dependent Na+ efflux was approximately 75 pmol#cm2.s.
  • (10) The DNA untwisting enzyme has been purified approximately 300-fold from rat liver nuclei.
  • (11) The molecular weight of antigen RFB2 was estimated to be approximately 85,000 daltons based on the results of gel filtration on Sepharose CL-6B.
  • (12) Approximately 90% of the patients have a lambda light chain myeloma protein and almost all patients excrete Bence-Jones protein.
  • (13) With glucose and protein as intraduodenal stimulus (no pancreatin added), the plasma amino acids rose significantly less (by approximately 50% of the control experiment) and the increment in insulin (but not C-peptide) concentrations was significantly reduced by loxiglumide.
  • (14) Plasma fibrinogen decreased by approximately 7% due to hemodilution caused by plasma volume expansion.
  • (15) The estimated DNA compaction ratio (approximately 3-fold) is consistent with a significant degree of nucleosome unfolding in the hyperstimulated BR genes.
  • (16) Each species has approximately 500 core histones cluster repeats per haploid genome.
  • (17) This gene, termed cbbE', codes for a putative surface protein of approximately 55 kDa, termed the E' protein.
  • (18) The total content of both thyroid hormones in the oocytes increased throughout most of the ovarian cycle as the oocytes increased in size from less than 2 mg to approximately 6.5 mg by ovulation.
  • (19) Sonographic images of the gallbladder enable satisfactory approximation of gallbladder volume using the sum-of-cylinders method.
  • (20) 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%.

Exact


Definition:

  • (a.) Precisely agreeing with a standard, a fact, or the truth; perfectly conforming; neither exceeding nor falling short in any respect; true; correct; precise; as, the clock keeps exact time; he paid the exact debt; an exact copy of a letter; exact accounts.
  • (a.) Habitually careful to agree with a standard, a rule, or a promise; accurate; methodical; punctual; as, a man exact in observing an appointment; in my doings I was exact.
  • (a.) Precisely or definitely conceived or stated; strict.
  • (a.) To demand or require authoritatively or peremptorily, as a right; to enforce the payment of, or a yielding of; to compel to yield or to furnish; hence, to wrest, as a fee or reward when none is due; -- followed by from or of before the one subjected to exaction; as, to exact tribute, fees, obedience, etc., from or of some one.
  • (v. i.) To practice exaction.

Example Sentences:

  • (1) Meanwhile Bradley Beal has developed into a dangerous second option and complementary sidekick in exactly the same way that Dion Waiters hasn't for the Cleveland Cavaliers.
  • (2) Furthermore, the backing away from any specific yield targets is exactly the lack of clarity that the FX market will not like."
  • (3) If it works anyone can do this exactly as we have done.” The sudden release follows weeks of visual clues left on the Radiohead frontman’s Twitter and Tumblr.
  • (4) She was clearly elected on a pledge not to cut school funding and that’s exactly what is happening,” Corbyn said.
  • (5) Hamilton said it was uncanny to find themselves in another desperate emergency situation almost exactly one year on.
  • (6) He missed the start of the season while rehabbing from last season's ankle injury, played exactly six games with the Los Angeles Lakers before getting hurt again and even if he's healthy he may still sit the game out .
  • (7) Johnson said the move would save businesses £350m from not having to meet the more exacting standards, which will now only have to be met by buses.
  • (8) These experiments represent the first occasion that the sequence specificity of a DNA damaging agent, which causes only double-strand breaks, has been determined to the exact base-pair in intact cells.
  • (9) The structural region contains serines, threonines, and cysteines at exactly the positions required to give mature nisin by a series of post-translational modifications involving dehydration of serines and threonines to dehydro forms, and cross-linking with cysteine residues.
  • (10) We propose that exact definitions must be given for the auxiliary enzymes in the recommendations of standard determinations for enzyme activities.
  • (11) Early diagnosis and exact resuscitation are the two most important aspects of a plan of treatment which anticipates the need for early surgery.
  • (12) But now, that's exactly what he tried to do … and it didn't work," he said.
  • (13) Concentrations of DLIS were detectable in significantly more (58.3%) of the 12 CHF patients (group A) who were not receiving digoxin than in the 22 normal volunteers tested (13.6%) (P less than 0.05 by both chi-square and Fisher's exact test).
  • (14) One of them got a gold medal in medicine, for being top of the year, but they dropped out for exactly these reasons.” These are not alarmist stories being spread by campaigners.
  • (15) But she has struggled – quite awkwardly – to articulate her evolution on same-sex marriage, and has left environmental activists wondering what her exact energy policy is.
  • (16) The surgeon must have an exact idea of this canal before undertaking operation for plastics of the hernial defect.
  • (17) The exact timing of the introduction of the glycopeptide antibiotics teicoplanin and vancomycin in the management of the febrile neutropenic patient continues to be controversial.
  • (18) While some might deride the deliberate mainstream branding and design, saying it panders to convention, this is exactly what Hannah feels her community needs.
  • (19) The predicted yeast enzyme contains at least four potential membrane-spanning regions and several shorter hydrophobic regions that align exactly with similar sequences in the rat liver protein.
  • (20) If, for the PWC 170 will be utilized, two steps with heart-rates of greater than 140 on the lower and 160 to 170 on the higher step, the PWC 170 seems to be exactly sufficient for estimating the maximal physical working capacity for routine testing of healthy young people.