What's the difference between retrace and trace?

Retrace


Definition:

  • (v. t.) To trace back, as a line.
  • (v. t.) To go back, in or over (a previous course); to go over again in a reverse direction; as, to retrace one's steps; to retrace one's proceedings.
  • (v. t.) To trace over again, or renew the outline of, as a drawing; to draw again.

Example Sentences:

  • (1) Thus it may be concluded that afferent inputs to the cortical transplants retrace normal cortical inputs.
  • (2) Finally we're turning back on ourselves, retracing our route down the coast, aiming for the rent-a-car in Punta del Este.
  • (3) By storing mass data for long periods, the NSA could develop the capability to recreate a reporter’s research, retrace a source’s movements and listen in on past communications, King warns.
  • (4) Since then, a team of the paper's reporters has been retracing every one of the 673 stories that Blair had filed during his four years on the Times.
  • (5) The 25-year-old's last journey, which started after she left work on 17 December, was retraced by an actor and filmed for BBC1's Crimewatch programme.
  • (6) They were soon able to verify their authenticity and, retracing the paintings' steps, they decided that the works in all probability were taken by the thieves by train from Paris to Turin, but were abandoned on board, possibly during border checks.
  • (7) The author begins by briefly retracing the causes and the evolution of sinistrosis.
  • (8) Stages of primary oocytes and follicles during ovarian development, and of maturing follicles during breeding cycles of some species, may retrace the phylogenetic progression of sizes of ancestral clutches and ripe follicles.
  • (9) PBS, ferritin, and IgG showed no such behavior at any of three pH values, and retraced their path of aggregation while dissociating on temperature reversal.
  • (10) The early origins of the concept of brain death have been retraced.
  • (11) The experiments in retracing evolution suggest, however, that the self-sequencing of amino acids was the evolutionary precursor of modern nucleic acid templating; the genetic memory is the molecule.
  • (12) After remembering to fill in the visitors’ book – and taking out any excess rubbish you can carry – carefully retrace your steps back down to the big boulder you left yesterday.
  • (13) When ships dock here from Antarctica and when daytrippers return after retracing Darwin’s trip across the Beagle Channel a surprising high proportion of passengers utter the same words: “Let’s go to the Irish pub!” The Dublin is no carbon copy from the motherland; instead it has a distinct local look – a shack-like structure, corrugated frontage (green, of course) and small-paned windows.
  • (14) After exploring the mill area, retrace your steps to Bridge Cottage and cross back over the little bridge, turn left and continue downstream on the river’s right bank.
  • (15) Based on his own essential contribution to the making of the guide to the city of Ludwigshafen the author retraces the various stages of conception.
  • (16) The reliability coefficient comparing the first tracings and measurements in the 19 cases that were retraced and remeasured was r = 0.993.
  • (17) This analysis is an attempt to retrace the missteps made since 9 August by five key players in the Ferguson crisis: St Louis County prosecuting attorney Bob McCulloch; Governor Jay Nixon of Missouri; Ferguson police chief Thomas Jackson; Ferguson mayor James Knowles and St Louis County police chief Jon Belmar.
  • (18) Occupational exposure to respiratory hazards throughout their career was retraced for each subject.
  • (19) – the Death of Terry Lloyd, to be broadcast on 21 March, follows the journalist's daughter Chelsey as she retraces his final movements in Iraq , looking for answers her family has been seeking for a decade.
  • (20) To do this, scientists have developed computer models to effectively play waves and winds backwards, allowing rescue workers to retrace the movements of debris to the site of a crash.

Trace


Definition:

  • (n.) One of two straps, chains, or ropes of a harness, extending from the collar or breastplate to a whiffletree attached to a vehicle or thing to be drawn; a tug.
  • (v. t.) A mark left by anything passing; a track; a path; a course; a footprint; a vestige; as, the trace of a carriage or sled; the trace of a deer; a sinuous trace.
  • (v. t.) A very small quantity of an element or compound in a given substance, especially when so small that the amount is not quantitatively determined in an analysis; -- hence, in stating an analysis, often contracted to tr.
  • (v. t.) A mark, impression, or visible appearance of anything left when the thing itself no longer exists; remains; token; vestige.
  • (v. t.) The intersection of a plane of projection, or an original plane, with a coordinate plane.
  • (v. t.) The ground plan of a work or works.
  • (v. t.) To mark out; to draw or delineate with marks; especially, to copy, as a drawing or engraving, by following the lines and marking them on a sheet superimposed, through which they appear; as, to trace a figure or an outline; a traced drawing.
  • (v. t.) To follow by some mark that has been left by a person or thing which has preceded; to follow by footsteps, tracks, or tokens.
  • (v. t.) Hence, to follow the trace or track of.
  • (v. t.) To copy; to imitate.
  • (v. t.) To walk over; to pass through; to traverse.
  • (v. i.) To walk; to go; to travel.

Example Sentences:

  • (1) Glyceryl p-aminobenzoate and amyl p-dimethyl-aminobenzoate were labeled on 1 and 3 sunscreens, respectively, but glyceryl p-aminobenzoate was not found in any of them and only traces of amyl p-dimethylaminobenzoate were found in 1 sunscreen.
  • (2) Throughout the entire cultivation cytidyl derivatives occurred in trace quantities.
  • (3) persisted and was more abnormal in 23% of the cases including specific tracings in 37%.
  • (4) Traces of the sulphoxide of butylmercapturic acid have been found in rat urine but not in rabbit urine.
  • (5) No 7 beta-hydroxysteroid dehydrogenase activity and only a trace of 7 alpha-hydroxysteroid dehydrogenase activity could be demonstrated when bile acid was deleted from the growth medium.
  • (6) Silicon, a relatively unknown trace element in nutritional research, has been uniquely localized in active calcification sites in young bone.
  • (7) Although various micronutrients (vitamins and trace elements) have also been found to have either a positive or negative association, findings were more clear-cut for the different food items contributing the micronutrients than for the specific micronutrients themselves.
  • (8) Methods used in tracing and improving cooperation of subjects are described.
  • (9) Her black persona unravelled this week when Ruthanne and Larry Dolezal, a couple named on her Montana birth certificate as her biological parents, told Spokane’s KREM 2 News that her ancestry was German and Czech, with traces of Native American.
  • (10) they are shown to inhibit in vitro the release of iron from acidified host cell cytosol, consisting mostly of hemoglobin, a process that could provide this trace element to the parasite.
  • (11) Thus, the carotid pulse tracing provides an accurate reproduction of the morphology of the pressure tracing recorded from the ascending aorta, and when calibrated by peripheral blood pressure measurement, it can be used to calculate LV pressure throughout ejection.
  • (12) Mutant C grew anaerobically in the light, whereas mutant G1 was light sensitive and produced only trace amounts of bacteriochlorophyll a (0.6 mumole per ml of protein).
  • (13) The effect was shown to be due to caldesmon and not to a trace contaminant by its full reversibility after addition of a monospecific caldesmon antibody.
  • (14) Of 15 organochlorine compounds analyzed, trace amounts mainly of p,p-DDE and polychlorinated biphenyls (PCBs) were detected, but could not be quantitated.
  • (15) Fifty physiologically characterized units were injected with horseradish peroxidase (HRP) or Lucifer yellow CH (LY) and their processes were traced to the crista.
  • (16) Polysomnography has revealed that this drug has several interesting qualities that benzodiazepines do not possess: stages 3-4 increase, stage 2 is unchanged or slightly reduced and no abnormal changes are detected on the EEG tracing.
  • (17) We find that the labelled cell has a myelinated axon, but that the axon loses its myelin within 50 microns of the soma and has not yet been traced further.
  • (18) He is likely to propose increased funding of plant disease experts, the stepping up of surveillance at ports of entry and a Europe-wide "plant passport" system to trace the origins of all plants coming into Britain.
  • (19) In addition, the postulated personality for PD may predispose to hard work, perspiration, and increased exposure to putative trace elements in the water supply.
  • (20) The voltage trace is then analysed with a piece of transparent paper, on which lines corresponding to solutions of the diffusion equation convert the time axis of the voltage trace into a concentration axis.

Words possibly related to "retrace"